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Publication Citation: Experimental Constraints on Some Mechanisms for High-Temperature Superconductivity

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Author(s): I Barbee; Marvin Cohen; David R. Penn;
Title: Experimental Constraints on Some Mechanisms for High-Temperature Superconductivity
Published: January 01, 1991
Abstract: Since its discovery, many mechanisms have been suggested to explain the phenomenon of high-temperature superconductivity in oxides. We propose that experimental data, along with theoretical models, can place constraints on or exclude many of these mechanisms. The isotope shift-alpha, the transition temperature Tc, the ratio of the electronic-specific-heat jump to the normal-state specific heat {Δ}C/γ Tc, and the superconducting gap ratio 2{Δ}/kBTc are considered. We find limits on the applicability of solely phonon-based and combined phonon-electronic mechanisms.
Citation: Physical Review B (Condensed Matter and Materials Physics)
Volume: 44
Issue: 9
Pages: pp. 4473 - 4479
Research Areas: Condensed Matter Physics