All issues
Volume 36 (1974)
- Issue 6 Pages 1501-
- Issue 5 Pages 1221-
- Issue 4 Pages 923-
- Issue 3 Pages 623-
- Issue 2 Pages 317-
- Issue 1 Pages 1-
Predecessor
- Proceedings of the Physico-Mathematical Society of Japan. 3rd Series
- Proceedings of the Tokyo Mathematico-Physical Society. 2nd Series
- Tokyo Sugaku-Butsurigakukwai Kiji-Gaiyo
- Tokyo Sugaku-Butsurigakkwai Hokoku
- Tokyo Sugaku-Butsurigaku Kwai Kiji
- Tokyo Sugaku-Butsurigaku Kwai Kiji
- Tokyo Sugaku Kaisya Zasshi
Volume 36, Issue 2
Displaying 1-50 of 58 articles from this issue
-
Y. P. Varshni1974 Volume 36 Issue 2 Pages 317-325
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA detailed analysis of the applicability of two three-parameter expressions for the level energies has been carried out on the ground-state bands of 149 deformed even-even nuclei. It is shown that the expression EI=aI(I+1)+pI+qI2(I+1), provides a satisfactory description of the experimental data and gives better results amongst the two. A method of estimating Ic, the spin at which the “back-bending” effect is expected to take place, is also developed.View full abstractDownload PDF (1112K) -
S. S. Bhati, Nirmal Singh, P. C. Mangal, P. N. Trehan1974 Volume 36 Issue 2 Pages 326-330
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAngular correlation studies have been carried out for seven cascades viz. 275–410, 275–319, 596–91, 440–91, 398–91, 319–91 and 197–398 keV in 147Pm. Out of these 275–410 keV cascade has been attempted for the first time. A spin assignment of 5/2+ has been confirmed for the 490 keV level. The mixing ratios of 596, 440, 410, 398, 319 and 197 keV gamma rays were found to be M1+(19−4+6)% E2, M1+(25−3+4)% E2, E2+3.8% M3, M1+(5±1.5)% E2, M1+(1.5−1.5+1.0)% E2 and M1+(82±4)% E2, respectively. The experimental transition probabilities for the 596, 440, 275, 197 and 91 keV gamma rays have been calculated and comparison made with the single particle estimates.View full abstractDownload PDF (568K) -
Shoji Shirato, Kazuo Saitoh1974 Volume 36 Issue 2 Pages 331-335
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe revised data of the n-p differential cross section at 14.1 MeV have been presented. The revised values of the cross section at 8 mean neutron-scattering angles in the range 172.0°–52.5° in the C. M. system have been increased systematically by about 2.3% than our previous values due to the precisely calculated neutron-flax correction. The result of a re-measurement done by using a new polyethylene radiator and a new neutron-source apparatus is in good agreement with the revised data.View full abstractDownload PDF (608K) -
Eiko Takekoshi, Yoshihide Ishizaki, Hikonojo Orihara, Masaaki Kanazawa ...1974 Volume 36 Issue 2 Pages 336-340
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe (p, t) reaction at Ep=52 MeV has been used to study differential cross sections and cross section ratios of the ground state band members in 236U and 230Th. Experimental results were compared with the usual zero-range DWBA calculations, where the difference between deformations of the target and the residual nucleus was explicitly taken into account. In 236U angular distributions of 0+(g. s), 2+(45 keV), 4+(149 keV) and 6+(310 keV) members of ground state band were obtained. In addition, the 8+(520 keV) member, which has been assigned from α-γ measurements, was observed. For 230Th, the 0+(g. s), 2+(53 keV) and 4+(174 keV) members of the ground-state band were observed and also the previously unobserved 6+ member was found at an excitation energy very near that 400 keV estimated from the I(I+1) law.View full abstractDownload PDF (628K) -
Yoji Totsuka, Masatoshi Koshiba1974 Volume 36 Issue 2 Pages 341-350
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA method of phenomenological analysis of multiple muon events is presented, where the influence of the decay probability of parent mesons are explicitly taken into account and the effect of the finite size of detectors are also included. Our experimental results as well as other existing data deep underground were analysed and mutually consistent reasonable fits were obtained for the existing data.View full abstractDownload PDF (1296K) -
Teruhiro Suda, Yoji Totsuka, Masatoshi Koshiba1974 Volume 36 Issue 2 Pages 351-360
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAn experiment was carried out at vertical depths of 1350 hg/cm2 underground in order to investigate the high energy, \gtrsim450 GeV, muon bundles. The muon bundles, upto the highest observed multiplicity of 18, were observed in a stack of three horizontal layers of wide gap spark chambers and three lead absorber layers of area 8.35 m2 each.
The experimental set-ups and the procedures in correcting for various experimental biases are described. The result for the average zenith angle of 20° and the average slant depth of 1380 hg/cm2 in standard rock is presented in the from of multiplicity distribution.View full abstractDownload PDF (1364K) -
Hiroshi Yasuhara1974 Volume 36 Issue 2 Pages 361-369
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSShort-range correlations in an electron gas are investigated from a diagrammatic analysis of perturbation theory. An infinite sum of electron-electron ladder diagrams is shown to be indispensable for the short-range correlation at metallic densities. A new approximate expression for the dielectric function ε(q, ω) is presented, which is an interpolation between the random phase approximation (RPA) for small q and an infinite sum of ladder diagrams between electrons with antiparallel spins for large q.View full abstractDownload PDF (1044K) -
Yoshihiro Ohmura, Koji Ishikawa, Yukio Mizuno1974 Volume 36 Issue 2 Pages 370-375
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSRigorous calculation of the same type as a preceding paper of this series is carried out for absorption spectra, and the following conclusions are drawn.
(i) Absorption spectra also follow the generalized power law like emission spectra did:
\ ildew(ω)=γ(ω)|ωF−ω|α(ω) for ω>ωF,
where ω denotes the frequency of absorbed photon, ωF being the value at threshold.
(ii) Both α(ω) and γ(ω) are regular at ω=ωF, and they are exactly the analytical continuations of those for the corresponding emission spectra into the frequency range ω>ωF, respectively.
Both (i) and (ii) are expected to remain valid as they stand or with slight extentions even for models and situations much more general and much more realistic than examined actually in papers of this series, and they will form the basis for analysing experiments.View full abstractDownload PDF (612K) -
Yukio Osaka1974 Volume 36 Issue 2 Pages 376-385
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSHohenberg and Kohn have dealt with the ground state of an interacting electron gas in an external potential and show that there exists a universal functional of the electron density n(r), G[n(r)], independent of an external potential. This functional plays a central role in a theory of inhomogeneous electron gas. In this paper, a formal theory for deriving the form of this functional is developed. The method of this derivation is based on the use of a nonlinear response theory. Our analysis shows that G[n] can be expressed entirely in terms of nonlinear response functions. We derive the full expression of G[n] which is written explicitly by the density n(r). Furthermore, we find the generalized form of “compressibility sum rule”.View full abstractDownload PDF (792K) -
G. D. Goudaroulis, A. D. Jannussis1974 Volume 36 Issue 2 Pages 386-392
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSIn the present paper the Green-function of the lattice electron is calculated by use of the Wannier functions. Then the Green-functions of the free-electron in uniform fields are given and also the Green-function of the lattice electron in a uniform magnetic field, by considering the periodic potential as a perturbation, by use of the Schrauben functions.View full abstractDownload PDF (612K) -
Masatoshi Nakayama1974 Volume 36 Issue 2 Pages 393-398
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA new type of surface mode of the electromagnetic wave is predicted in the case when charge carriers are located at the boundary of dielectric media. The dispersion relation of the mode is derived and its characteristic feature is discussed. Effect of the surface carrier is represented in terms of characteristic frequency Ωs (=4πNse2⁄m*c; Ns is density of the surface carrier). The dispersion takes the linear form in the low frequency region (ω<<Ωs), while it has the square root form (ω∝\sqrtk) in the high frequency limit (ω>>Ωs). In contrast to the case to the absence of surface carriers the present mode exists in the frequency region where at least one of the dielectric functions of the adjacent media takes positive value. As a numerical example the dispersion relation is calculated and illustrated for clean surface of p-type InAs.View full abstractDownload PDF (776K) -
Toshiyuki Ninomiya1974 Volume 36 Issue 2 Pages 399-405
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe frictional force acting on the dislocation is calculated for the fluttering mechanism based on the continuum approximation. It is shown that the equations of motion lead to the inelastic scattering of thermal phonons, resulting in transfer of their momentum to the dislocation. The frictional force by this mechanism has the T3-dependence at low temperatures. If we use the Debye cut-off, the magnitude is about 1.6×10−4 dyne·sec/cm2 for Cu at room temperature.View full abstractDownload PDF (720K) -
Kensuke Tani1974 Volume 36 Issue 2 Pages 406-421
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA phonon theory developed previously which is a new approach besides the self consistent phonon theory and which is generalization of the Born phonon theory giving the rigorous phonon frequencies and normal coordinates of a crystal at an arbitrary temperature, is applied to neutron scattering from lattice vibrations in an anharmonic crystal. This application is done using a moment expansion of the canonical correlation function in the form of a continued fraction. A displacive ferroelectric and a perovskite crystal which exhibits a structural phase transition are discussed in some detail. A magnetic system having the spin-phonon interaction due to modulation of the exchange interaction caused by lattice vibrations is also discussed. A scattering cross section which depends explicitly upon the interaction acting on a phonon and has an anomalous temperature dependence near the transition point is found in some cases.View full abstractDownload PDF (2008K) -
Kentaro Ohhashi, Ikuji Tsujikawa1974 Volume 36 Issue 2 Pages 422-430
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSMagnetic properties of layered compounds of graphite, in which a FeCl3 layer is separated by one (the 1st stage) or two layers (the 2nd stage) of graphite were studied by Mössbauer effect. The easy directions of spins were within the basal plane for the both stages, which were determined by measuring relative intensities of Zeeman components on samples of well orientated c-axis. The temperature dependence of internal magnetic fields could be described according to the Weiss theory for S=5⁄2 normalized to Hn(0K)=500 kOe and with TN=4 K. The coexistence of a central line and Zeeman lines, and their temperature dependent intensities could be interpreted as the superparamagnetic system with clusters of one molecular thickness and mean diameter ≈1000 Å. The observed quadrupole splittings 0.20 mm/sec for the 1st stage and 0.25 mm/sec for the 2nd stage were considered as due to trigonal distortions from the regular octahedrons of FeCl3 molecule.View full abstractDownload PDF (1236K) -
Yuji Ito, Jun Akimitsu1974 Volume 36 Issue 2 Pages 431-437
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSMagnetic from factor of Ni–Cr alloy with 4.5 at % Cr was measured by the polarized neutron diffraction method. From the form factor analysis, the mean localized moments of Ni and Cr were determined as 0.356±0.002 μB and 0.002±0.91 μB at room temperature respectively. The rate of decrease of the mean localized moment of Ni at 0 K with respect to the Cr concentration ∂μNi⁄∂c=−5.8±0.2μB is slightly steeper than that of the bulk moment. From this and from disturbance parameters of Cr in the Co0.95Cr0.05 alloy, the magnetic clusters around each environment dependent moment of Ni atoms in the Ni0.95Cr0.05 alloy were calculated.View full abstractDownload PDF (944K) -
Takashi Yamaoka, Mamoru Mekata, Hideo Takaki1974 Volume 36 Issue 2 Pages 438-444
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSNeutron diffraction was measured on single crystals of the disordered γ-phase Mn1−xIrx(x=0.128, 0.170, 0.204 and 0.256). Diffraction patterns were interpreted by an antiferromagnetic two-sublattice structure with tetragonal symmetry. The (110) magnetic reflection was measured up to about 800 K for the determination of the temperature dependence of sublattice magnetization and the Néel temperature. The critical index for magnetization was found to be 0.38 for the x=0.170 alloy. The Néel temperature increases remarkably with increasing Ir at a rate of about 9 K/at%Ir. The obtained magnetic form factors are well expressed by f=(1⁄0.9)(f3d−0.1f4s) constructed from the scattering functions calculated by Freeman and Watson. The average magnetic moment per Mn atom increases from 2.2μB to 2.6μB with increasing Ir from x=0 to x=0.204. Diffuse scattering due to partial atomic order of Mn3Ir was observed in the x=0.256 alloys.View full abstractDownload PDF (920K) -
Takashi Yamaoka1974 Volume 36 Issue 2 Pages 445-450
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSCrystallographic and magnetic properties were studied in the disordered γ-phase Mn1−xIrx (0.05<x<0.35) alloys. In Mn rich alloys, tetragonal distortion with axial ratio c⁄a>1 occurs at a temperature below their Néel temperature, TN. The tetragonal distortion temperature, Td in the antiferromagnetic ordered state decreases rapidly with increasing Ir and the alloys with x>0.15 remain cubic down to low temperatures. On the other hand, TN increases with alloying Ir at a rate of about 9 K/at%Ir up to 730 K at x=0.25 and it is extrapolated to 500±20 K for fcc Mn. It was concluded that the anomalous rise of TN is not mainly attributed to atomic order nor to the enhancement of exchange interaction due to lattice expansion, but that the perturbation of band structure due to alloying leads to stronger magnetic interaction. A Cu3Au type atomic ordering in the vicinity of x=0.25 was found to raise the TN by about 200 K. The origin of tetragonal distortion is discussed.View full abstractDownload PDF (816K) -
Tadashi Sugawara, Motoki Takano, Sigeru Takayanagi1974 Volume 36 Issue 2 Pages 451-455
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe resistivities of a series of dilute MoMn, MoFe and MoCo alloys were measured between 1.5 K and room temperature in order to understand the nature of the s-d exchange interaction in these alloys. It was found that the resistivity of MoCo and MoFe shows a normal Kondo effect with a Kondo temperature of 46±2 K and about 0.3 K, respectively, while the resistivity of MoMn shows a positive temperature coefficient with a characteristic temperature of 17±4 K, which is considered as the Kondo temperature of this alloy. In addition to these anomalies due to magnetic scattering, a peak was observed at about 50 K in the resistivity of all the alloys studied. This peak was attributed to the differing anisotropies of the relaxation times for impurity and phonon scattering.View full abstractDownload PDF (704K) -
Mitsuo Kataoka1974 Volume 36 Issue 2 Pages 456-463
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe anomalous properties of Fe2TiO4, i.e. (i) the giant magnetostriction ((c−a)⁄a=7.5×10−3 at 77 K), (ii) the anomalously small elastic constant (c11–c12), and (iii) the positive magnetic anisotropy constant, are explained by taking into account both the Jahn-Teller effect of Fe2+ ions in the A-sites of the spinel structure and the spin-lattice coupling of Fe2+ ions in the B-sites. It is shown that when the direction of the Jahn-Teller distortion is determined so as to lower the energy of the coupling between the spins in the B-sites and local distortions due to the Jahn-Teller effect, the Jahn-Teller distortion itself behaves as if it were a giant magnetostriction. The temperature dependences of the distortion, elastic constants and the specific heat are calculated. It is found that (c11–c12) has a minimum and the excess specific heat due to the Jahn-Teller ions has a maximum below the Néel temperature. Discussions on the magnetic anisotropy constant are also given.View full abstractDownload PDF (1072K) -
Osamu Sueoka1974 Volume 36 Issue 2 Pages 464-469
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSUsing the temperature dependence of the peak value in the angular correlation, the formation energy of a monovacancy in Cu and the effects of multivacancies on the peak value have been obtained. The formation energy of a monovacancy, EF1v, is EF1v=1.20±0.07 eV. The representation of the trapping model in plural trapped states has been given in the similar formulation to the conventional trapping model, was tried to apply for the data analysis.View full abstractDownload PDF (748K) -
Toshihiko Taki, Tatsuo Kanashiro, Takashi Ohno, Mitsuo Satoh1974 Volume 36 Issue 2 Pages 470-475
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe nuclear magnetic double resonance technique has been used to study the first order quadrupole splittings of the NMR lines due to Na nuclei surrounding the substitutional impurities in NaCl single crystals. By studying the angular variation, signals observed are assigned to (0, 0, 1) Na sites around the Br− impurities in NaCl–NaBr solid solutions, and to (0, 0, 1) Na and (1, 1, 1) Na sites close to the I− impurities in NaCl–NaI crystal. The electric field gradients on these sites are found from the quadrupole frequency νQ obtained from our experiments and the nuclear quadrupole moment Q=0.1×10−24 cm2 for Na nucleus:
eq=52×1012 esu/cm3 for (0, 0, 1) sites in NaCl–NaBr,
eq=140×1012 esu/cm3 for (0, 0, 1) sites and
eq=91×1012 esu/cm3 for (1, 1, 1) sites in NaCl–NaI.
The results are discussed in comparison with the theory considering the jonic displacements and the overlap of the electronic wave functions.View full abstractDownload PDF (788K) -
Hiroto Kuroda, Shigeo Shionoya1974 Volume 36 Issue 2 Pages 476-484
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSTo study the dynamical processes of high density single excitons and excitonic molecules in CdSe, the time dependences of M, PM and P luminescence lines and the time-resolved absorption spectra of A excitons are measured in the pico-second region at 4.2 K. The exciton absorption peak shifts to the high energy side due to the high density effect, the shift reaching the maximum at 20 ps after the pulse excitation. M line reaches the maximum at 100 ps, PM line at 200 ps and P line at 300∼350 ps. The decay constants are 100, 100 and 350 ps, respectively. The dynamical aspects of the formation of A excitons, the formation of excitonic molecules and the inelastic collisions of single excitons and excitonic molecules are discussed. It is interpreted why the use of the pico-second pulse excitation is essentially important for the realization of the Bose condensation of excitonic molecules.View full abstractDownload PDF (1268K) -
Hajime Hattori, Osamu Fujitani, Masayoshi Umeno1974 Volume 36 Issue 2 Pages 485-490
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe second (μ-type) photoconductive effect due to the inter-valence band transition of germanium was observed during the experiment on the photon drag effect. In order to discuss this effect, an analysis was done under the assumption that the heavy and light holes are relaxed by the intra-band and inter-valence band transitions, respectively. The result shows that the photoconductivity depends most strongly on the heavy hole density. The theoretical predictions on the temperature dependence of photoconductivity were in good agreement with the experiment.View full abstractDownload PDF (668K) -
Tatsumi Kurosawa, Hajime Maeda, Hidehiko Sugimoto1974 Volume 36 Issue 2 Pages 491-497
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSHot carrier instability associated with the negative differential conductivity in a transverse magnetic field is discussed with emphasis on its marked differences from the instability when not under the magnetic field. The condition for the instability is considerably changed by the presence of the magnetic field, because the current is not parallel to the electric field and the negative differential conductivity has to be defined differently from the usual case. Generally, a system in the magnetic field becomes unstable more easily than a system not in the magnetic field does. Under a strong magnetic field, even a weak non-linearity in the current-field characteristic sometimes can bring about the instability. The domain structure expected in the present case and experimental facts relevant to the present theory are also discussed.View full abstractDownload PDF (840K) -
Hiroyasu Shimizu, Makoto Tsukamoto, Yoshihiro Ishibashi, Masayoshi Ume ...1974 Volume 36 Issue 2 Pages 498-503
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe Brillouin scattering spectra in NaNO2 have been studied using a Fabry-Perot interferometer. The observed Brillouin shifts for eighteen acoustic phonons in nine scattering geometries have been assigned to specific modes of vibration. The determined values of nine elastic constants in units of 1010 dyn/cm2 are C11=31.7, C22=58.2, C33=66.0, C44=12.4, C55=9.91, C66=4.79 (C66D=4.98), C12=12.6, C23=17.4 and C13=19.7 at room temperature. The temperature dependence of C22D associated with the longitudinal phonon propagating along the ferroelectric b-axis has been studied with particular emphasis in the region close to the Curie and the Néel points. The elastic stiffness constant C22D showed anomalous decrease both at the Curie and the Néel temperatures. These results are compared with those obtained in the ultrasonic region.View full abstractDownload PDF (700K) -
Eiichiro Nakazawa, Shigeo Shionoya1974 Volume 36 Issue 2 Pages 504-510
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSRather sharp zero-phonon lines accompanied by many vibronic lines are observed in the near-ultraviolet luminescence and excitation spectra due to the 4f-5d transitions of Ce3+ ion in YPO4 and LuPO4 crystals at low temperature. Comparing the vibrational energies of the vibronic lines with the results of infrared and Raman measurements of YPO4 crystals, it is shown that these vibronic lines can be separated into two parts; the one is due to the lattice (external) vibration of Y3+ and PO43− ions and the other is due to the coupled molecular (internal) vibration of PO4 complexes. The coupling scheme of these vibrations with the 4f or 5d electron of Ce3+ ion is discussed.View full abstractDownload PDF (884K) -
Hitoshi Kanamori, Shinji Hayashi, Yasukazu Ikeda1974 Volume 36 Issue 2 Pages 511-516
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAll the symmetry coordinates for long-wavelength lattice vibration, external modes 2Bg+2Eg+2Au+2Eu and internal modes 3Ag+3Bg+3Eg+3Au+3Bu+3Eu, are obtained by the group theoretical calculations including the projection operator technique. For internal modes, site symmetry consideration simplifies the procedure. For external modes, two possible sets of force constants between first and second neighbour ions in CaWO4, CaMoO4 and SrMoO4 are obtained from Raman and infrared frequencies. Normal coordinates are derived and briefly schematized.View full abstractDownload PDF (600K) -
Hisao Hagiwara, Ryozo Oyamada1974 Volume 36 Issue 2 Pages 517-522
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSFour characteristics of the glassy PbO–GeO2 system were examined. X-ray diffraction pattern of the sample of 50 mol % PbO showed the maximum intensity at d-value 2.885 Å which was in accordance with that of the compound PbO·GeO2 (relative intensity 60 %). Infrared absorption band of the glassy GeO2 at 11.5 μ, which would be assigned as ν3 mode of tetrahedral GeO4 unit, shifted toward longer wavelength side with increasing PbO content and the shift showed a plateau at 47–50 mol % PbO. Dielectric constant also kept nearly constant value at 47–50 mol % PbO. The wavelengths corresponding to the intrinsic absorption coefficients per PbO mole fraction (e. g. 70 cm−1/m.f.) increase linearly with increasing PbO content, having the inflection point at 45 and 55 mol % PbO. The ionic character of the bond GeO4–Pb is discussed on the basis of the results.View full abstractDownload PDF (728K) -
Nobuo Tsuda, Takefumi Mitsuhashi, Toshinobu Chiba1974 Volume 36 Issue 2 Pages 523-525
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSAngular correlation curve of powdered monoclinic ZrO2 was taken and compared with some calculated curves, It is expected that the wave function of oxygen 2s electron extends more outwards than that used here.View full abstractDownload PDF (384K) -
Yutaka Kano1974 Volume 36 Issue 2 Pages 526-528
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe optical equivalence theorem is examined for the particular class of the electromagnetic fields. It is shown that the distribution function can be taken as a non-negative function, if the density operator describing the states of the electromagnetic field is diagonal in the occupation number representation. Hence the equivalence is not only formal but also essential for this class of the electromagnetic fields, so long as the description of the optical coherence theory is concerned. As a typical example the “diagonal” representation of the density operator for blackbody radiation is studied.View full abstractDownload PDF (380K) -
Osamu Saito, Tsuneto Takahashi1974 Volume 36 Issue 2 Pages 529-531
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSA relation between the number of intra-molecular linkages created in amorphous polymers by cross-linking reaction and the second moment of molecular size distribution is obtained. It is shown by comparing the relation with the results of Monte Carlo calculation that the theory gives a good estimation of the number of intra-molecular linkages, which is negligible up to the point.View full abstractDownload PDF (364K) -
Hiroshi Asai1974 Volume 36 Issue 2 Pages 532-536
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSElectric birefringence and electric dichroism methods are proposed, which can decide the most plausible transition model for a given allosteric protein. Asymmetric quarternary conformations which appear at an intermediate concentration of ligand in the case of the KNF model or a more generalized model can be detected directly by the appearance of electric permanent dipole in birefringence of dichroism. A theorem concerning the maximum concentrations of asymmetric quarternary conformations is also derived, and suggested to be useful for evaluation of various thermodynamic parameters in transition models.View full abstractDownload PDF (648K) -
Seiji Tsurubuchi, Tsuruji Iwai, Tadao Horie1974 Volume 36 Issue 2 Pages 537-541
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAbsolute measurements of the emission cross-sections for the A-X band-spectrum of OH and the Hβ line in the dissociative excitation processes of H2O by electron-impact have been carried out by means of the crossed-beam technique, with the aid of a high sensitive spring balance made of fused quartz. The spring has a tiny pan, which is surrounded by a specially designed trap of liquid nitrogen. The spring words well for direct intensity measurements of the water molecular beam, because the condensation coefficient of H2O on ice is large enough at lower temperatures.
The following results have been obtained; (4.2±2.1)×10−18 cm2 for the Hβ transition, and (7.1±3.5)×10−18 cm2 for the OH (A, 2Σ+−X, 2Π) transition, at 300 eV respectively.View full abstractDownload PDF (628K) -
Kiyoji Uehara, Koichi Shimoda1974 Volume 36 Issue 2 Pages 542-551
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe magnetic hyperfine interactions in the triply degenerate vibrational state of 12CH4 are theoretically studied. The spin-vibration interaction is introduced as well as the spin-spin and spin-rotation interactions to obtain the explicit expressions of matrix elements of the hyperfine energy. The numerical calculations are carried out for the 67 F1(2) and A1 sublevels in the v3=1 exited state and a comparison is made with a recent measurement of Hall and Bordé on the F1(2) line.View full abstractDownload PDF (968K) -
S. K. Kor, N. D. Tripathi1974 Volume 36 Issue 2 Pages 552-554
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAssuming the atomic motions in water, methanol and ethanol as similar to those of solids, the effective Debye temperature has been calculated as a function of temperature and pressure for these liquids.View full abstractDownload PDF (380K) -
Michiru Yasuhara, Kenji Yoneda, Susumu Sato1974 Volume 36 Issue 2 Pages 555-557
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSVibrational relaxation time τ of a gaseous methane behind shock waves at pressure p, are measured from the density variation obtained by using a narrow beam laser schlieren method. The results obtained for a temperature range of T=300–800 K are shown in a Landau-Teller plot, which shows essentially the linearity of ln pτ versus T−1⁄3. Also the results obtained by the ultrasonic method are shown to give a good comparison with the present method.View full abstractDownload PDF (400K) -
Kozaburo Tamura, Junichi Fukushima, Hirohisa Endo, Shigeru Minomura, O ...1974 Volume 36 Issue 2 Pages 558-564
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe effect of pressure on the electrical resistance of amorphous Ge and Ge–Sn alloys prepared by the evaporation onto mica substrates has been measured up to about 130 kbar. It is found that the semiconductor to metal transition occurs at pressure of 60 kbar in amorphous Ge, and this transition pressure is changed by alloying of Sn.View full abstractDownload PDF (884K) -
Kozaburo Tamura, Junichi Fukushima, Hirohisa Endo, Kosaku Kishi, Shige ...1974 Volume 36 Issue 2 Pages 565-571
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSX-ray photoelectron emission spectra for the amorphous binary alloys between Ge and Ni, Fe and Au have been obtained. The positions and shapes of the main peaks associated with d-band of Ni, Fe and Au in the spectra change with addition of Ge. The valence orbitals of s and p symmetries of Ge in Ni, Fe and Au may mix with the s, p and d-orbitals of surrounding host atoms to form bonding and antibonding molecular orbitals.View full abstractDownload PDF (936K) -
Kunizo Ohkubo, Shigetoshi Tanaka1974 Volume 36 Issue 2 Pages 572-578
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSBy means of the probe antenna, the electrostatic wave in the low density region and the Whistler wave in the high density region can be excited in the magnetized plasma column with the finite diameter. The propagation characteristics of both waves are measured in detail by the interferometer method. The observed transition region from the electrostatic to Whistler wave is interpreted well by using the model of the longitudinally magnetized plasma waveguide. It is experimentally confirmed that the Whistler wave is right-hand circularly polarized. The observed dispersion curves agree well with theoretical prediction.View full abstractDownload PDF (1016K) -
Masashi Kando, Susumu Takeda1974 Volume 36 Issue 2 Pages 579-584
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe diffusion waves in a plasma are analyzed for the ion-neutral collision frequency greater than the ion plasma frequency. It is, then, observed that with the increase in frequency, the diffusion wave tends to a mode governed by an electron free diffusion rather than the ion acoustic mode. The experiment has been mode in an axially decaying helium plasma produced by r.f. discharge at the pressures of 2.0 and 4.0 Torr. The interferometer patterns of the diffusion waves are well explained by the theory proposed here.View full abstractDownload PDF (680K) -
Shobu Kaneko, Toshihide Tsunematsu1974 Volume 36 Issue 2 Pages 585-590
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe hydromagnetic energy principle is applied to the derivation of the necessary and sufficient condition for the stability of the linear Bennett pinch. Two models of the finite-radius pinch are considered. In the first model, the radius of the plasma column is assumed to be equal to the radius of a conducive wall. In another model, the radius of the plasma column is assumed to be smaller than the radius of the wall. Though long-wavelength kink disturbances are stabilized by the conductive wall, the stability conditions of both models for all kink disturbances change only slightly from the stability condition of an infinite-radius pinch. Sausage disturbances are stabilized more effectively by the wall. It is shown that the conductive wall has little effect on the stability of the pinch in the Tokamak device if it can be represented by the Bennett pinch.View full abstractDownload PDF (752K) -
Yukiharu Ohsawa, Kazuhiro Nozaki1974 Volume 36 Issue 2 Pages 591-595
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSNew solutions of solitary pulses in three-wave interactions are obtained, which were not given in the previous paper of this series. In those solutions, the wave of lower frequency has a shock-type envelope and behaves as a “pump” while the other two waves have the pulse-type ones. In addition, by considering two effects, linear translations of the waves and nonlinear interactions, a physical mechanism of formation of the solitary pulses is found. The theory is applied to the interaction among two Alfvén waves and an ion-acoustic wave, which propagate along the external magnetic field.View full abstractDownload PDF (724K) -
Toshio Tange1974 Volume 36 Issue 2 Pages 596-602
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe dielectric response function of a two-component, inhomogeneous plasma in a magnetic field is calculated from a solution of the Vlasov equation, to the first-order terms in the density-gradient expansion. The spectral function of the electric-field fluctuations is then obtained with the aid of the superposition principle of the dressed test particles. The physical interpretation of the results is given in terms of the effects arising from the spatial variation of the average density and those created by the diamagnetic drift.View full abstractDownload PDF (576K) -
Setsuo Ichimaru, Toshio Tange1974 Volume 36 Issue 2 Pages 603-609
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe diffusion coefficient of the electrons across a magnetic field (with strength B) is calculated in terms of the spectral function of the electric field fluctuations. The calculation is based on the microscopic evaluations of the first and second moments of the guiding-center displacements under the action of the fluctuating electric field in an inhomogeneous plasma. For a Maxwellian plasma, it is found that the diffusion coefficient contains an anomalous term D⊥* in addition to the usual classical term; D⊥* is proportional to B−1 when ωe2(1+Te⁄Ti)>>Ωe2, and to B−2lnB when ωe2(1+Te⁄Ti)<<Ωe2, where ωe is the electron plasma frequency, and Ωe, the electron cyclotron frequency. The contributions of the like-particle interactions vanish identically in the idiffusion coefficient.View full abstractDownload PDF (712K) -
Akira Sakurai1974 Volume 36 Issue 2 Pages 610
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (124K) -
Kôki Ikeda, Takurô Nakamichi, Tutomu Yamada, Mikio Yamamot ...1974 Volume 36 Issue 2 Pages 611
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (168K) -
Tokiyoshi Itagaki, Takao Karakizawa, Shoichi Shiina, Haruyuki Ohonishi ...1974 Volume 36 Issue 2 Pages 612
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (200K) -
Michio Kiritani, Naoaki Yoshida1974 Volume 36 Issue 2 Pages 613
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (176K) -
Hiroshi Kameyama, Yoshihiro Ishibashi, Yutaka Takagi1974 Volume 36 Issue 2 Pages 614
Published: February 15, 1974
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (144K) -
J. Geiger1974 Volume 36 Issue 2 Pages 615
Published: February 15, 1974
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSDownload PDF (168K)