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Direct observation of spin-orbit coupling in iron-based superconductorsстатья
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: 12 июня 2016 г.
- Авторы: Borisenko S.V., Evtushinsky D.V., Liu Z.H., Morozov I., Kappenberger R., Wurmehl S., Buechner B., Yaresko A.N., Kim T.K., Hoesch M., Wolf T., Zhigadlo N.D.
- Журнал: Nature Physics
- Том: 12
- Номер: 4
- Год издания: 2016
- Издательство: Nature Publishing Group
- Местоположение издательства: United Kingdom
- Первая страница: 311
- Последняя страница: 317
- DOI: 10.1038/nphys3594
- Аннотация: Spin–orbit coupling is a fundamental interaction in solids that can induce a broad range of unusual physical properties, from topologically non-trivial insulating states to unconventional pairing in superconductors1, 2, 3, 4, 5, 6, 7. In iron-based superconductors its role has, so far, not been considered of primary importance, with models based on spin- or orbital fluctuations pairing being used most widely8, 9, 10. Using angle-resolved photoemission spectroscopy, we directly observe a sizeable spin–orbit splitting in all the main members of the iron-based superconductors. We demonstrate that its impact on the low-energy electronic structure and details of the Fermi surface topology is stronger than that of possible nematic ordering11, 12, 13. The largest pairing gap is supported exactly by spin–orbit-coupling-induced Fermi surfaces, implying a direct relation between this interaction and the mechanism of high-temperature superconductivity.
- Добавил в систему: Морозов Игорь Викторович