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pro vyhledávání: '"Matayoshi, Seitaro"'
Autor:
Matayoshi, Seitaro
Publikováno v:
琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences. 26:9-19
The random phase and Callen approximations to ferromagnet with anisotropic exhange interactions have been discussed on the basis of rigorous theory. When compared with the reslts of one and two dimensional systems, it has been found that these approx
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::45f6d7978e21039cb94042cbfe248826
http://hdl.handle.net/20.500.12000/23828
http://hdl.handle.net/20.500.12000/23828
Autor:
Matayoshi, Seitaro, Shinjo, Tsuneo
Publikováno v:
琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences. 27:19-38
The Curie points T_c (μ) as the function of anisotropic interaction parameter μ are calculated by both the constant coupling and the improved constant coupling approximations. T_c (μ) by these approximations decrease, as the parameter μ increases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::29dcea21faf6794321ac384087e0327e
http://hdl.handle.net/20.500.12000/23673
http://hdl.handle.net/20.500.12000/23673
Autor:
Matayoshi, Seitaro
Publikováno v:
琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences. 15:16-25
Using two band models for solids with an Ising impurity, we have seen the possibility of "effective" energy gap in the superconducting states. This "effective gap" appears for the existences of the both gaps; namely, the one belonging to the model of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::262b792fbb276edf1d75202dd9cb9005
http://hdl.handle.net/20.500.12000/23459
http://hdl.handle.net/20.500.12000/23459
Autor:
Yara, Asao, Matayoshi, Seitaro
Publikováno v:
琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences. 14:13-21
We have investigated the effect of the correlation of impurities in a superconductor. Using the exact solution for the Hamiltonian without the spin dynamics, we have obtained the excited impurity levels dependent on R, which is the distance between i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7cc8f71d7b4de66d79546286b4710082
http://hdl.handle.net/20.500.12000/23450
http://hdl.handle.net/20.500.12000/23450
Autor:
Matayoshi, Seitaro, Yara, Asao
Publikováno v:
琉球大学理工学部紀要. 理学編 = Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences. 15:26-44
In this paper we have dealt with an anisotropic s-d exchange interaction and calculated physical quantities such as specific heat and resistivity using the Hamann's approximation, Since partial breakdown of the rotational symmetry arises in this syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::92f30ceac8ec459c66e91f2ac0dfc10c
http://hdl.handle.net/20.500.12000/23460
http://hdl.handle.net/20.500.12000/23460
Autor:
Yara, Asao, Matayoshi, Seitaro
Publikováno v:
琉球大学理工学部紀要. 理学編. (16):26-41
Making improvement on the Takano-Ogawa, Abrikosov, and Kurata theories, we investigated the behavior of the anomalous parameter △ by introducing anomalous Green functions. Because of the appearance of the factor (lnD/T )^ , the parameter △ is con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4cae8301fcaaf3ce621cd2614189d27a
https://u-ryukyu.repo.nii.ac.jp/records/2006949
https://u-ryukyu.repo.nii.ac.jp/records/2006949
Autor:
Takano, Fumihiko, Matayoshi, Seitaro
Publikováno v:
Progress of Theoretical Physics: PTP; January 1969, Vol. 41 Issue: 1 p45-45, 1p