Titlebook: High-Tc Superconductors; Harald W. Weber Book 1988 Springer Science+Business Media New York 1988 HTS.High-temperature superconductivity.Su

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Critical Overview of Theories for High Temperature SuperconductorsIn this overview I will discuss the principal theoretical ideas proposed for the mechanism of superconductivity in the oxide metals, their chief shortcomings and some of the experimental results which relate one way or the other to them.

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Specific Heat of the Superconducting Compound YBa2Cu3O7-x in Magnetic FieldsIn the present work the specific heat of a YBa. Cu. O. specimen was studied experimentally in the temperature range from 3 to 85 K and in magnetic fields of 0 and 8 T. Several characteristic parameters were obtained, including the superconducting transition temperature T., the Debye temperature θ and the Sommerfeld parameter y.

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Deviation from Linearity of the Cu-O Chains in Orthorhombic YBa2Cu3O7 by High-Resolution Neutron Pow The oxygen atoms on the so-called linear Cu-O chains occupy potential minima which are displaced from the chain axis along [100] by at least 0.08(1). at all temperatures. The Cu-O-Cu bond angle of the resulting Cu-O zig-zag chains, .=175(1)°, does not vary significantly as a function of temperature below T..

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