Mechanism of SuperconductivityNo Access

ROBUST STATISTICAL MECHANISM FOR PHONON-DRIVEN HIGH-T_c SUPERCONDUCTIVITY

M. de LLANO

Instituto de Investigaciones en Materiales, UNAM, 04510 México, DF, Mexico

Consortium of the Americas for Interdisciplinary Science, University of New Mexico, Albuquerque, NM 87131, USA

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F. J. SEVILLA

Instituto de Física, UNAM, 01000 México, DF, Mexico

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M. A. SOLÍS

Instituto de Física, UNAM, 01000 México, DF, Mexico

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, and

J. J. VALENCIA

Instituto de Investigaciones en Materiales, UNAM, 04510 México, DF, Mexico

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https://doi.org/10.1142/S0217979205027883Cited by:0 (Source: Crossref)

Abstract

Though commonly unrecognized, a superconducting BCS condensate consists of equal numbers of two-electron (2e) and two-hole (2h) Cooper pairs (CPs). A new complete (in the sense that 2h-CPs are not ignored) boson-fermion statistical ternary gas model, however, is able to depart from this perfect 2e-/2h-CP symmetry. It yields robustly higher T_c's without abandoning electron-phonon dynamics, and reduces to all the known statistical theories of superconductors, including the BCS-Bose "crossover" picture—but goes considerably beyond it.

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