Model of high-T c superconductivity in low-coordination semiconductors and polymers
B. P. PopovA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg State Technical University, St. PetersburgK. D. TséndinA. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg State Technical University, St. Petersburg
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Abstract
We propose a model in which the state with anomalously high conductivity observed in some lowcoordinated semiconductors and polymers when the temperature of the surrounding medium is T 0≈300 K, is described by the theory of the superconducting properties of a system of localized electron pairs. The superconducting properties of the model are determined by transport along a bipolaron band formed by localized pairs of carriers belonging to U − centers, i.e., intrinsic defects with a negative effective correlation energy
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