Three-dimensional superconducting gap in FeSe from angle-resolved photoemission spectroscopy

Авторы: Kushnirenko Y.S., Fedorov A.V., Haubold E., Thirupathaiah S., Wolf T., Aswartham S., Morozov I., Kim T.K., Buechner B., Borisenko S.V.
Журнал: Physical Review B
Том: 97
Номер: 18
Год издания: 2018
Издательство: American Physical Society
Местоположение издательства: United States
DOI: 10.1103/PhysRevB.97.180501
Аннотация: We present a systematic angle-resolved photoemission spectroscopy study of the superconducting gap in FeSe. The gap function is determined in a full Brillouin zone including all Fermi surfaces and k(z) dependence. We find significant anisotropy of the superconducting gap in all momentum directions. While the in-plane anisotropy can be explained by both nematicity-induced pairing anisotropy and orbital-selective pairing, the k(z) anisotropy requires an additional refinement of the theoretical approaches.
Добавил в систему: Морозов Игорь Викторович

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