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Publication Citation: Limitations on a Combined Phonon -- Non-Phonon Mechanism for Superconductivity Bi2Sr3Ca1Cu2Ox

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Author(s): I Barbee; Marvin Cohen; David R. Penn;
Title: Limitations on a Combined Phonon -- Non-Phonon Mechanism for Superconductivity Bi2Sr3Ca1Cu2Ox
Published: January 01, 1991
Abstract: Despite the large number of theories proposed to explain high-temperature superconductivity, no clear explanation of its origin exists. Experimental data such as the isotope effect α and the gap ratio 2{Δ}/kbTc can be used to constrain possible models for high-temperature superconductivity. We consider a class of models which contain contributions to pairing from phonons and also from another unspecified boson, and place limitations on such models in light of these experimental data and recent results derived from photoemission data for Bi2Sr2Ca1Cu2Ox.
Citation: Physics Letters A
Volume: 161
Issue: 1
Pages: pp. 85 - 88
Research Areas: Condensed Matter Physics