Titlebook: High-Temperature Superconductivity; Experiment and Theor Nikolai M. Plakida Book 1995 Springer-Verlag Berlin Heidelberg 1995 Exciton.High-t

Pessary

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Lattice Dynamics and Electron-Phonon Interaction,echanism of pairing [6.1]. Much attention has therefore been paid to the investigations of the phonon spectra of high temperature superconductors aimed at finding a certain phonon contribution to the formation of the Cooper pair condensate.

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Crystal Structure,n small changes in structure often bring about considerable changes in the electronic properties of a solid, for example, the Peierls metal-insulator phase transitions. Therefore, the investigation of the crystal structure, i.e., long-range order, dependence of the structure on temperature, pressure

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Antiferromagnetism in High-Temperature Superconductors,mpounds, the copper ions are in the state Cu. and have one hole with spin . = 1/2 in the 3. shell. A strong superexchange interaction (via oxygen ions) between hole spins at copper sites gives rise to a three-dimensional long-range antiferromagnetic order with relatively high Neel temperatures .. =

ALOFT

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Electronic Properties of High-Tc Superconductors,re important in clarifying the mechanism of superconductivity in the new oxide superconductors. With respect to their electronic structure, these compounds may be related to the class of ionic semiconductors, in which the metallic conductivity appears upon the changes of stoichiometry. Their electro

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