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Multiband Material with a Quasi-1D Band as a Robust High-Temperature Superconductorстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 ноября 2021 г.
- Авторы: Saraiva T.T., Cavalcanti P.J.F, Vagov A., Vasenko A.S., Perali A., Dell’Anna L., Shanenko A.A.
- Журнал: Physical Review Letters
- Том: 125
- Номер: 21
- Год издания: 2020
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 217003-1
- Последняя страница: 217003-6
- Номер статьи: 217003
- DOI: 10.1103/physrevlett.125.217003
- Аннотация: It is well known that superconductivity in quasi-one-dimensional (Q1D) materials is hindered by large fluctuations of the order parameter. They reduce the critical temperature and can even destroy the superconductivity altogether. Here it is demonstrated that the situation changes dramatically when a Q1D pair condensate is coupled to a higher-dimensional stable one, as in recently discovered multiband Q1D superconductors. The fluctuations are suppressed even by vanishingly small pair-exchange coupling between different band condensates and the superconductor is well described by the mean field theory. In this case the low dimensionality effects enhance the coherence of the system instead of suppressing it. As a result, the critical temperature of the multiband Q1D superconductor can increase by orders of magnitude when the system is tuned to the Lifshitz transition with the Fermi level close to the edge of the Q1D band.
- Добавил в систему: Ружицкий Всеволод Игоревич