Room-temperature-superconducting T c driven by electron correlation

Abstract Room-temperature-superconducting T c measured by high pressure in hydrides can be theoretically explained by a Brinkman–Rice (BR)–Bardeen–Cooper–Schrieffer (BCS) T c combining both the generalized BCS T c and the diverging effective mass, m*/m = 1/(1 − (U/U c )2), with the on-site Coulomb i...

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Autor principal: Hyun-Tak Kim
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/b7809e863fa44ebd86835f118fd83bc2
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Sumario:Abstract Room-temperature-superconducting T c measured by high pressure in hydrides can be theoretically explained by a Brinkman–Rice (BR)–Bardeen–Cooper–Schrieffer (BCS) T c combining both the generalized BCS T c and the diverging effective mass, m*/m = 1/(1 − (U/U c )2), with the on-site Coulomb interaction U in the BR picture. A transition from U in a correlated metal of the normal state to U c in the superconducting state can lead to superconductivity, which can be caused by volume contraction induced by high pressure or low temperature.