Background
Kamimura, Hiroshi was born on August 13, 1930 in Ashiya, Japan. Son of Tomitaro and Chikako (Hamada) Kamimura.
(The objective of this book is to provide an up-to-date co...)
The objective of this book is to provide an up-to-date comprehensive descr- tion of the Kamimura-Suwa model, which is the ?rst of the present rep- sentative two-component theories in high temperature superconductivity. In 1986 George Bednorz and Karl Alex Muller .. made the remarkable discovery ofsuperconductivitywithanunbelievinglyhighvalueofT = 35K,bysubs- c 2+ 3+ tuting Ba ions for La ions in the antiferromagnetic insulator La CuO . 2 4 Soon after this discoveryT rose to 90K by synthesizing YBa Cu O with c 2 3 7?? ade?citinoxygen. Furtherexplorationfornewcopperoxidesuperconducting materials with higherT led to the discovery of Bi-Sr-Ca-Cu-O, Tl-Ba-Ca- c Cu-O and Hg-Ba-Ca-Cu-O compounds in subsequent years. The new class of copper oxide compounds mentioned above is called "cuprates". At present T = 135K under ambient pressure andT = 164K under 31 GPa observed c c in HgBa Ca Cu O are the highest value so far obtained. The Kamimura- 2 2 3 8 Suwa model, which was originally developed in 1993, is a theory of these real copper oxide superconducting materials. Since undoped La CuO is a 2 4 Mott-Hubbard antiferromagnetic insulator, its electronic structure can not beexplained bytheordinaryone-electron energybandtheory. Inthiscontext the important role of electron-correlation was pointed out. 2+ On theother hand, ad-hole state in each Cu ion in theligand ?eld with octahedral symmetry is orbitally doubly-degenerate so that it is subject to strong Jahn-Teller interaction in La CuO. Asaresult,aCuO octahedron 2 4 6 in La CuO is elongated along thec-axis due to the Jahn-Teller distortion.
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Kamimura, Hiroshi was born on August 13, 1930 in Ashiya, Japan. Son of Tomitaro and Chikako (Hamada) Kamimura.
Bachelor of Science in Physics, University Tokyo, 1954. Master of Science in Physics, University Tokyo, 1956. Doctor of Science, University Tokyo, 1959.
Research assistant physics Department, University Tokyo, 1959-1961;
lecturer, U. Tokyo, 1965-1967;
associate professor, U. Tokyo, 1967-1978;
professor, U. Tokyo, 1978-1991;
retired, U. Tokyo, 1991;
professor, Science University of Tokyo, since 1991;
member technical staff, Bell Telephone laboratories, Murray Hill, 1961-1964. Guest member Cavendish laboratory U. Cambridge, 1974-1975. Chairman Semiconductor Commission, International Union of Pure and Applied Physics, 1985-1990.
Dean of science Science University of Tokyo, 1993-1996. Chairperson Research-Education Organisation for Information Sciences, Science University of Tokyo, since 1996. Guest professor of University Air, since 1988.
Research consultant Nippon Electric Corporation Tsubkuba Research Laboratory, since 1991.
(The objective of this book is to provide an up-to-date co...)
(This book surveys advances in the study of electron behav...)
Fellow American Physical Society, Institute of Physics (honorary). Member Physical Society Japan (president 1984-1985).
Married Miwako Yoshida, October 28, 1960. Children: Takahashi Hiromi, Keiji.