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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 48, Issue 1
Displaying 51-57 of 57 articles from this issue
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Kazuo Gesi, Masashi Iizumi1980 Volume 48 Issue 1 Pages 337-338
Published: January 15, 1980
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSIncommensurate satellite reflections at (h, 0, l±(1⁄3−δ)) were measured by neutron scattering for ferroelectric {N(CH3)4}2ZnCl4. In phase II (7.5∼23.6°C) an incommensurate structure (δ≠0) was observed. The parameter δ is about −0.086 at the II–I transition temperature, and the absolute value of δ slightly decreases with decreasing temperature. At the ferroelectric Curie temperature (7.5°C) it tends discontinuously to zero. The results confirm that the ferroelectricity in this material is caused by the incommensurate-to-commensurate phase transition as in the case of K2SeO4.View full abstractDownload PDF (272K) -
Sigetosi Tanisaki, Hiroyuki Mashiyama1980 Volume 48 Issue 1 Pages 339-340
Published: January 15, 1980
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe superstructures are found in low temperature phases of {N(CH3)4}2ZnCl4. With decreasing temperature, the cell dimension of the pseudo-hexagonal axis changes as c0, ∼5c0, 5c0, 3c0, c0 and 3c0, where c0 is the fundamental repeated unit of the structure. The space groups of each phases are Pmcn(Z=4), incommensurate, P21cn(Z=20), P1121⁄n(Z=12), P121⁄c1(Z=4) and P212121(Z=12), respectively.View full abstractDownload PDF (272K) -
Ryoichi Yamamoto, Koukichi Haga, Masao Doyama1980 Volume 48 Issue 1 Pages 341-342
Published: January 15, 1980
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe local vibrational densities of states of the neighbors of a vacancy in α-Fe and Cu were calculated by the recursion method. Resonance mode was found in both cases, but a localized mode occurred at the 1st nearest neighbor site of a vacancy in Cu.View full abstractDownload PDF (232K) -
Kiyoshi Ueda, Takashi Fujimoto, Kuniya Fukuda1980 Volume 48 Issue 1 Pages 343-344
Published: January 15, 1980
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe absorption bands have been observed which are associated with the electric-quadrupole transitions 4s-3d and 4s-5d of calcium perturbed by rare gases, and compared to the excimer transitions in cesium-rare gas systems. The origin of these bands is discussed.View full abstractDownload PDF (268K) -
Kiyoshi Ueda, Yasuo Ashizawa, Takashi Fujimoto, Kuniya Fukuda1980 Volume 48 Issue 1 Pages 345-346
Published: January 15, 1980
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSSeveral collision-induced dipole transitions have been observed in the absorption spectra below 2400 A of calcium perturbed by rare gases. The obtained effective oscillator strengths per unit rare gas density are found to correlate with low-energy electron scattering cross sections on the rare-gas atoms.View full abstractDownload PDF (232K) -
Kiyoshi Yamamoto, Iwao Hosokawa1980 Volume 48 Issue 1 Pages 347-348
Published: January 15, 1980
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe three typical energy spectrums of steady, inviscid, isotropic, homogeneous, two-dimensional turbulence derived from the so-called canonical distribution of the flow velocity field are evidenced by a numerical analysis in a coarse-graining sense.View full abstractDownload PDF (236K) -
Shin’ichi Oishi1980 Volume 48 Issue 1 Pages 349-350
Published: January 15, 1980
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe Bäcklund transform, the superposition formula among solutions connected by the Bäcklund transform, and solutions expressed by the Wronskians of the Korteweg-de Vries equation are obtained under slowly decreasing boundary condition by making use of the Hirota method.View full abstractDownload PDF (260K)