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학술지 Room-temperature-superconducting Tc Driven by Electron Correlation
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저자
김현탁
발행일
202105
출처
Scientific Reports, v.11, pp.1-10
ISSN
2045-2322
출판사
Nature Research
DOI
https://dx.doi.org/10.1038/s41598-021-88937-7
협약과제
20HB1100, 휴대 단말용 급격한 전하방전 저전압 스위칭 소자 원천기술 개발, 노태문
초록
Room-temperature-superconducting Tc measured by high pressure in hydrides can be theoretically explained by a Brinkman?밨ice (BR)?밄ardeen?밅ooper?밪chrieffer (BCS) Tc combining both the generalized BCS Tc and the diverging effective mass, m*/m = 1/(1혻?닋혻(U/Uc)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 Uc in the superconducting state can lead to superconductivity, which can be caused by volume contraction induced by high pressure or low temperature.
KSP 제안 키워드
Effective mass, Low temperature(LT), Normal state, On-Site, Room-temperature, Superconducting state, Volume contraction, correlated metal, coulomb interaction, electron correlation, high-pressure
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