Theory of Copper Oxide Superconductors - Hiroshi Kamimura - Books - Springer-Verlag Berlin and Heidelberg Gm - 9783642064340 - October 14, 2010
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Hiroshi Kamimura
Theory of Copper Oxide Superconductors Softcover reprint of hardcover 1st ed. 2005 edition

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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.

214 pages, 104 black & white illustrations, 5 colour illustrations, 9 black & white tables

Media Books     Paperback Book   (Book with soft cover and glued back)
Released October 14, 2010
ISBN13 9783642064340
Publishers Springer-Verlag Berlin and Heidelberg Gm
Pages 214
Dimensions 150 × 220 × 10 mm   ·   353 g
Language German  

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