-
Yasuko Maeda
1966 年 21 巻 1 号 p.
1-13
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
A large emulsion cloud chamber (E. C. C.) carried by a balloon was exposed at high altitude (October, 1963, Kobe). The characteristics of the interactions of high energy cosmic ray particles (\gtrsim10
13 eV) with other nuclei were examined. Forty-two events with energies higher than 10
12 eV were observed, from which the events of nuclear interactions in the carbon producer were selected. The transverse momenta of γ-rays which were the decay products of π°-mesons emitted from jets were estimated at 230 MeV/c (assuming that the
Pt distribution of γ-ray resembles that of π°’s, and the average
Pt value of π° is about twice that of γ). The curve of
Pt distribution does not fit the Gaussian form. In the energy region of about 10
12 eV, the energy spectrum can be fit by single power laws of 1.50±0.42 for Σ
Eγ, and 1.60±0.25 for
Eγ. There is no correlation between
Pt and
Eγ.
抄録全体を表示
-
Hiroyasu Ejiri, Yoshio Saji, Yoshihide Ishizaki, Masahiro Koike, Kazuh ...
1966 年 21 巻 1 号 p.
14-24
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
Deuterons from (p, d) reactions on
40Ca,
52Cr and
60Ni were investigated by using 55 MeV proton beam from the INS synchrocyclotron. Deuterons were analyzed by a broad range magnetic analyzer coupled with a pair of quadrupole magnets and were detected with forty fold proportional counters followed by a plastic scintillator. Predominant deuteron groups were observed corresponding to the single hole states of neutrons in
39Ca,
51Cr and
59Ni. Angular distributions of the deuteron groups were analyzed in terms of the distorted wave Born approximation. Fairly good agreements between the calculation and the experiments were obtained for the angular distributions and the spectroscopic factors. Brief discussions on the properties of the hole states and the binding energies are presented.
抄録全体を表示
-
Takuji Tsuzuki
1966 年 21 巻 1 号 p.
25-31
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The solid-liquid transition of molecular crystals is discussed. The intermolecular potential and the free volume are assumed to be, respectively, of the forms
φ(
r)=4ε{(σ⁄
r)
12−(σ⁄
r)
6},
vf=
b(
r−σ)
3.
The free energies of the regular lattice (solid-like state) are calculated. For an irregular lattice (liquid-like state), the distribution function 4π
r2g(
r) is assumed to be constant for
ri(1−
Δ)≤
r≤
ri(1+
Δ), instead of the δ(
r−
ri) function, and the free volume is of the from
b(
r−σ)
3+
b′(
rΔ)
3, where
Δ means the irregularity, and
b and
b′ are the constants.
The free energies of the both lattices are compared, and the first order transition can be obtained. The transition temperature, the volume change and the entropy of melting are in good agreement with those of observed values of argon.
抄録全体を表示
-
J. S. Rajput, A. K. Gupta
1966 年 21 巻 1 号 p.
32-33
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
If the clear distance between two metal ions in plotted vs. the nearest neighbour distance an interesting fact is fond that all the superconducting elements fall in a certain region of the plot. This region is called the island of superconductivity. It is postulated that the communal entropy of the metallic crystal structure due to sharing of the available volume by the metal ions, together with the valency of the elements, plays a prominent role in determining the occurence of superconductivity. A number of known facts are discussed on this basis.
抄録全体を表示
-
Akio Hiraki
1966 年 21 巻 1 号 p.
34-41
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
Intrinsic germanium semiconductor specimens with various dislocation densities were quenched from high temperatures to introduce vacancies, after purification by the surface oxidation technique. The contamination due to copper atoms diffused into these specimens was below 1×10
13 atoms/c.c.. Annealing curves of exponential decay type were observed for specimens with dislocation densities (
nD∼5×10
3∼10
5). The activation energy for diffusion and diffusion are found to be: 1.2∼1.3 eV and
DV(
T)=2×exp(−1.2eV⁄
kT)cm
2/sec..
After annealing of quenched-in vacancies, copper atoms were introduced into the specimens by diffusion procedures. By the analysis of precipitating manner of supersaturated copper atoms thus introduced, the formation energy of a vacancy is found to be 1.9 eV. Considering the number of quenched-in vacancies obtained by the quenching experiments, the concentration of quenched-in vacancies is concluded to be:
NV(
T)=1.85×10
23exp(−1.9eV⁄
kT)/c.c..
抄録全体を表示
-
Sudhanshu S. Jha
1966 年 21 巻 1 号 p.
42-48
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The effect of a strong transverse field of frequency ω
1 and amplitude
H1 on the dipolar line width of the nuclear magnetic resonance signal, has been calculated. The resonance signal is supposed to be the response of a weak transverse
rf field varying with frequency ω
2. By choosing the value of ω
1 such that γ
H1=\sqrt2(\barω−ω
1) where \barω is the average Larmor frequency of spins with the same gyromagnetic ratios γ, it is shown that in solids for γ
H1>>
Cst where
Cst is the frequency corresponding to the static dipolar line width in the absence of the strong rf field, the width can be reduced to the order of magnitude
Cst2⁄γ
H1. In the case of liquids with 1⁄τ
c>>
Cst, where τ
c is the correlation time of the molecular fluctuations, the line width is already reduced even with only the weak
rf field by a factor τ
cCst compared to that of solids; and to achieve further narrowing the same condition for ω
1 as in solids is required and a still stronger condition γ
H1>>1⁄τ
c for
H1.
抄録全体を表示
-
Takasi Sagawa
1966 年 21 巻 1 号 p.
49-53
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The K emission band of graphite was observed using a grazing incidence spectrometer, and unfolded with the use of Gaussian window function. The unfolding procedure reveals the intrinsic profile of the state density. The profile consists of four sub-bands. The highest one is π-band and the lower three are σ-bands. The overlapping between them is very small. The height of the Fermi edge is about one fortieth of the peak of the π-band. The width of the π-band is 5.8
5 eV. The ratio of the effective number of electrons per atom for π-and σ-electrons is estimated to be 0.9:3, which suggests a slight mixing between them. It is also estimated that the three σ-electrons are distributed equally into the three parts of the σ-band. The low energy tail is classified as a satellite.
抄録全体を表示
-
Jiro Yamashita, Shinya Wakoh, Setzuro Asano
1966 年 21 巻 1 号 p.
53-61
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
Results of numerical calculations of the band structure of the super-lattice CoFe are presented. The calculations are carried out according to the Green’s function method and the augmented plane wave method. Several
E(
k)-curves and a density-of-states curve are shown together with the numerical tables. The general character of the bands agrees well with prediction given by Mott.
抄録全体を表示
-
K.R.K. Easwaran
1966 年 21 巻 1 号 p.
61-64
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
A proton magnetic resonance study of diglycine nitrate has been carried out from room temperature down to 90°K. The second moment in poly. crystalline samples has been found to be 9.37 gauss
2±0.5 gauss
2 at room temperature; this increased to a value of 24.5 gauss
2±1.5 gauss
2 at 90°K. A more detailed study of this variation showed two transitions, one centred at about 192°K and another smaller one at about 208°K. The line shape in a single crystal has been studied for various orientations with respect to the magnetic field direction at room temperature and 90°K. The change in the line shape at one particular orientation has been studied as a function of temperature. The results are discussed in the light of a possible mechanism of ferroelectricity in this substance.
抄録全体を表示
-
Shun-ichi Kobayashi, Kunisuke Asayama, Junkichi Itoh
1966 年 21 巻 1 号 p.
65-74
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
NMR satellite lines were observed at frequencies lower than main line in Co alloys with dilute impurities, It is concluded that these satellites are due to the Co nuclei located at the nearest neighbor sites of the impurities and that the changes of magnetic moments are well localizes around the impurities. An equation is derived which can represent the frequencies of satellites. Some physical interpretations are given for the equation.
抄録全体を表示
-
V. Saraswati, R. Vijayaraghavan
1966 年 21 巻 1 号 p.
74-76
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The effect of temperature on the width of proton and sodium resonances have been studied in borax, tincalconite, kernite and the trihydrate. Na
2B
4O
7·3H
2O. Excluding the trihydrate, proton resonance line in all the samples broaden at 110°K. The transition temperatures are 210°K, 150°K and 235°K respectively for borax, tincalconite and kernite. Saturation narrowing has been observed in borax at low temperatures. The change in lineshapes have been explained with reference to their structure.
抄録全体を表示
-
Hisashi Abe, Hiroshi Yasuoka, Akira Hirai
1966 年 21 巻 1 号 p.
77-89
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
A spin echo amplitude for a spin system consisting of one nuclear species of spin
I with a large Zeeman energy and a small quadrupole interaction has been calculated for the case the excitation is carried out by two succeeding arbitrary rf pulses. The spin echo amplitude shows an oscillatory behavior which depends on the time interval between the first and the second pulses. The relation between this fundamental modulation period and the separation of the multiplet of steady state NMR absorption signal is derived. The possibility of observing multiple spin echoes is discussed and the modulation periods of these multiple echoes are calculated. These results showed satisfactory agreement with the experimental results observed on boron nuclei in ferromagnetic Fe
2B and MnB and on manganese nuclei in ferromagnetic MnB.
抄録全体を表示
-
Ko Yasukochi, Takeshi Ogasawara, Nobumitsu Usui, Hisayasu Kobayashi, S ...
1966 年 21 巻 1 号 p.
89-99
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The influence of the external current on the magnetization of non-ideal type II superconductors is explained. It is shown how in the mixed state the external current brings about a particular state of the critical distribution of flux threads allowing a finite total transport current. In the case where the external current is perpendicular to the external magnetic field, the reduction of the magnetization due to the external current and its dependence on the history of the application of current and field are explained quantitatively in Nb–Zr(25%) alloy. The transverve paramagnetic effect observed by LeBlanc is also discussed.
抄録全体を表示
-
Shin-ichi Nakashima
1966 年 21 巻 1 号 p.
100-105
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
An experimental investigation is made of instabilities in injected plasmas which are found in a Corbino disk shaped semiconductor subject to a radial electric field and an axial magnetic field. Rotating modes of |
m|=1 and |
m|=2 are observed in such disk of
n-type germanium at liquid nitrogen temperature with magnetic fields from 3 to 11 kilogauss.
A preliminary qualitative interpretation is given of the experimental results on the assumption of a spiral shaped perturbation.
抄録全体を表示
-
Yukio Miyai, Shin-ichi Nakashima
1966 年 21 巻 1 号 p.
106-110
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
Instabilities of injected plasmas in a Corbino disk shaped semiconductor subject to axial magnetic and radial electric fields are analysed on the basis of a model developed in the preceding article (J. Phys. Soc. Japan
21 (1966) 100).
It is shown that spiral shaped perturbations may grow if the unperturbed plasma is non-uniform in the direction of the applied electric field. It is further shown that perturbations may grow for sufficiently large wave numver
k if the density gradient is negative and if the potential gradient in the radial direction and
kmB, in which
m is an integer and
B the axial magnetic field, are both positive or both negative.
抄録全体を表示
-
Kisaburo Shogenji
1966 年 21 巻 1 号 p.
110-121
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The magnetoresistance of
n-type germanium has been measured at 64°K, 77°K and 90°K up to 90 kgauss, the specimens being doped with 6.1×10
13∼8.3×10
16 arsenic or antimony per cm
3. The transverse magnetoresistance ratio ρ(
H)⁄ρ(0) increases linearly with increasing field; the higher the electron mobility is the larger this ratio becomes. This fact can be accounted for by Herring’s theory for inhomogeneous medium. The longitudinal magnetoresistance at high fields also shows a little increase linearly with the field, which contradicts the usual theory of magnetoresistance and also Herring’s theory. A correlation has been found to exist between the linear increase of the transverse case and that of the longitudinal case. Saturation magnetoresistance and mobility-anisotropy
K=μ
||⁄μ
⊥ have been estimated using the correlation. Scattering-anisotropy
Kτ=τ
||⁄τ
⊥ for lattice scattering is estimated to be about 1.3 and
Kτ for ionized impurity scattering to be about 7.
抄録全体を表示
-
K. Kurki-Suonio, V. Meisalo
1966 年 21 巻 1 号 p.
122-126
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The structure amplitudes of CaF
2 measured by Togawa (J. Phys. Soc. Japan
19 (1964) 1969) are analyzed using methods developed by Kurki-Suonio (Ann. Acad. Sci. Fennicae A VI
93 (1962)). There is a considerable uncertainty in the scale and temperature parameters due to the residual term. The optimum values are slightly higher than those used by Togawa. The deviations of the ions from spherical symmetry are small but detectable. They can be characterized roughly by saying that the ions are slightly compressed by their nearest neighbours and extended towards the more empty regions, the fluorine ions also towards each other. The average trend of the experimental atomic factors coincides with the theoretical atomic factors within experimental errors.
抄録全体を表示
-
Shigeya Kuwabara
1966 年 21 巻 1 号 p.
127-134
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The electron diffraction intensities of evaporated gold, silver and aluminium films are measured by the use of “
Gegenfeld” filter technique. The result shows that the integrated line widths of the ordinary diffraction rings are much broader than those of filtered rings and the intensities vary not only with wavelength, crystal size and the structure factor but also with the filter potential. The formula obtained experimentally is
I∞hkl=
I0h exp(
cShklλ′
H).
Here,
I∞hkl and
I0hkl are the relative integrated intensity ratios of
hkl reflections form ordinary and filtered electron diffraction patterns,
Shkl is the structure factor,
H the crystal size,
c a coefficient, and λ′ is given by λ(1+0.00059⁄λ
2)
1⁄2, where λ is the wavelength of the electrons.
抄録全体を表示
-
Mahendra Singh Sodha, Predhiman Krishan Kaw
1966 年 21 巻 1 号 p.
134-142
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
In this paper the authors have studied the nonlinear generation of the second harmonic component in the current density in an inhomogeneous plasma due to a sinusoidal electric field, a density gradient and a temperature gradient. The appropriate Boltzmann’s transfer equation for electrons has been solved to obtain an expression for the second harmonic component of current density which has then been used in studying the nonlinear growth of the second harmonic of an electromagnetic wave in an inhomogeneous plasma and also the magnitude of the second harmonic component in the reflected wave from an inhomogeneous plasma-free space interface.
抄録全体を表示
-
Yasuo Tomishima, Katsumi Yonei
1966 年 21 巻 1 号 p.
142-153
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
According to the result obtained in a previous paper (J. Phys. Soc. Japan
20 (1965) 1051), the Weizsäcker correction is introduced into the TFD theory with a constant weighting factor λ(=0.2) and this extended statistical equation is solved for the electron distribution of the inert gas atoms Ne, Ar, Kr and Xe.
The values of the total energy calculated on this basis agree very well to the Hartree-Fock values. The diamagnetic susceptibilities, however, still have a poor coincidence although the present model gives definitely better results compared to the simple TF or TFD theory. One electron energy values or the occupied states in Kr atom are also calculated by the Bohr-Sommerfeld quantization condition.
抄録全体を表示
-
Hisanao Ogura
1966 年 21 巻 1 号 p.
154-166
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
Some representations of the random field, a generalization or the usual random process in multi-dimensional space, are given. The primary object is to obtain a new polar spectral representation for the homogeneous and isotropic random field applicable to a definite physical problem. The argument starts with constructing the moving average in multi-dimensional space by defining a Wiener integral in multi-dimensional space. The Fourier decomposition of the square integrable function specifying the moving average is shown to induce the ordinary spectral decomposition of the random field. Similary a polar spectral representation of a homogeneous and isotropic random field is derived explicitly for 2- and 3-dimensional cases in terms of countably infinite numbers of mutually independent random spectral measures. The correlation function and the spectral density are related to each other through a Hankel transformation. It is shown that the polar spectral representation takes a very simple form when a random phase angle is introduced, and that the multi-dimensional analogues of Rice’s repressentation of the random electric current can be obtained with the aid of the expansion of Fourier-Bessel and spherical harmonics in a disc or a sphere of finite radius.
抄録全体を表示
-
Michio Ohji
1966 年 21 巻 1 号 p.
167-172
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The Hall current terms are introduced into the spectrum equations of homogeneous magneto-fluid dynamic turbulence on which a strong uniform magnetic field is imposed externally. A neutral fully-ionized gas of uniform properties is assumed and the compressibility effects as well as the non-linear terms are neglected. The full tensor equations are combined to derive the associated scalar- and vector equations whose solutions are obtained for a simple special case. The Hall effect is thus shown to destroy the tendency to equipartition of turbulent energy between the mechanical and magnetic modes by reducing the net flow of energy from the one mode to the other.
抄録全体を表示
-
H. G. Sharma
1966 年 21 巻 1 号 p.
173-176
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The present paper presents a study of the steady motion of a fluid, whose rheological behaviour is governed by the equation (2.1) when it flows in the first instance past a porous circular cylinder with suction on its walls and secondary through the annulus between two coaxial right circular cylinders with suction and injection. The case of a flat plate with suction is derived from the first case. In the second case it is assumed that the rate of fluid injection at one of the surfaces is the same as that of withdrawal at the other, and the inner surface is moving with a constant velocity parallel to itself.
The effects of the elastico-viscosity and cross-viscosity of the fluid on the axial speed, skin-friction and boundary layer-thickness etc. have been discussed.
抄録全体を表示
-
Shigeki Morioka
1966 年 21 巻 1 号 p.
177-182
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
The non-equilibrium effect in the two-dimensional, steady flow of an ionizing gas past a magnetized wall is considered on the basis of the linearized theory. A simple approximate solution is derived for an argon-like idealized gas by making use of some character of its ionization. As an example, the velocity distribution along the wall and the slope of a stream line are calculated for both subsonic and supersonic flows past a plane wall containing a circular magnetic field. It is shown that the non-equilibrium process has no serious effect upon the flow field.
抄録全体を表示
-
Shin Yoneyama, Kazuyoshi Hirakawa
1966 年 21 巻 1 号 p.
183
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
-
Uichi Kubo, Yoshio Inuishi
1966 年 21 巻 1 号 p.
184
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Akira Sawaoka, Syôhei Miyahara, Syun-iti Akimoto, Hideyuki Fujis ...
1966 年 21 巻 1 号 p.
185
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Akira Ishida, Chihiro Hamaguchi, Yoshio Inuishi
1966 年 21 巻 1 号 p.
186
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Hiroshi Betsuyaku
1966 年 21 巻 1 号 p.
187
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Ryohei Nakada, Atsuko Ebina, Tadashi Takahashi
1966 年 21 巻 1 号 p.
188
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Yoshio Ishizawa, Eiji Hirahara
1966 年 21 巻 1 号 p.
189
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Yoshio Ishizawa, Eiji Hirahara
1966 年 21 巻 1 号 p.
190
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Makoto Watanabe, Riso Kato, Yoshio Nakai
1966 年 21 巻 1 号 p.
191
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Akira Ishida, Chihiro Hamaguchi, Yoshio Inuishi
1966 年 21 巻 1 号 p.
192
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
-
Teruya Shinjo, Koji Kosuge, Sukeji Kachi, Hideo Takaki, Masayuki Shiga ...
1966 年 21 巻 1 号 p.
193
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Hiroshi Mimura, Shigeru Kiritani, Tetsuya Sugai
1966 年 21 巻 1 号 p.
194
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Kiyoshi Yatsui, Yoshio Inuishi
1966 年 21 巻 1 号 p.
195-196
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Isamu Kitahiro, Akinori Watanabe, Hiromu Sasaki
1966 年 21 巻 1 号 p.
196
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Syôiti Kobayasi
1966 年 21 巻 1 号 p.
197-198
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Ojiro Nagai
1966 年 21 巻 1 号 p.
198
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
C. Okazaki, E. Hirota, Y. Neichi, H. Okazaki, S. Nakajima
1966 年 21 巻 1 号 p.
199-200
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Hideshi Yokota
1966 年 21 巻 1 号 p.
200
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Hanako Kobayashi
1966 年 21 巻 1 号 p.
201-202
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
-
Hideaki Chihara, Nobuo Nakamura
1966 年 21 巻 1 号 p.
202
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Toshihiko Dote, Ryohei Itatani
1966 年 21 巻 1 号 p.
203-204
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり
-
Osamu Saito
1966 年 21 巻 1 号 p.
204
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Shizuka Yoshii, Hisao Katsuraki
1966 年 21 巻 1 号 p.
205-206
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Osamu Saito, Tsuneto Takahashi
1966 年 21 巻 1 号 p.
206
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Hiroo Komura
1966 年 21 巻 1 号 p.
207
発行日: 1966/01/05
公開日: 2007/05/29
ジャーナル
認証あり
-
Y. Toyozawa, M. Inoue, T. Inui, M. Okazaki, E. Hanamura
1966 年 21 巻 1 号 p.
208
発行日: 1966/01/05
公開日: 2007/06/01
ジャーナル
認証あり