Structural Sensitivity of Transport Properties of the High-Tc Cuprates
Experiments demonstrating the structural sensitivity of the transport properties of the high-T c copper oxides are reviewed. The superconductive phase is an intermediate phase appearing between an antiferromagnetic parent phase and a metallic phase. Transitions between localized and itinerant electronic behavior are first-order, and the normal state of the superconductive phase exhibits unusual transport properties resulting from strong electron-lattice interactions; there is no evidence that the transport properties are influenced by changes in the spin system. A model in which itinerant vibronic states become increasingly stabilized with decreasing temperature is proposed.
KeywordsThermoelectric Power Superconductive Phase CuO4 Film Boltzmann Approximation CuO6 Octahedra
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