Evidence for large Rashba splitting in PtPb4 from Angle-Resolved Photoemission Spectroscopy

Autor: Lee, Kyungchan, Mou, Daixiang, Jo, Na Hyun, Wu, Yun, Schrunk, Benjamin, Wilde, John. M., Kreyssig, Andreas, Estry, Amelia, Bud'ko, Sergey L., Nguyen, Manh Cuong, Wang, Lin-Lin Wang Cai-Zhuang, Ho, Kai-Ming, Canfield, Paul. C., Kaminski, Adam
Rok vydání: 2020
Předmět:
Zdroj: Phys. Rev. B 103, 085125 (2021)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.103.085125
Popis: We studied the electronic structure of PtPb$_{4}$ using laser angle-resolved photoemission spectroscopy(ARPES) and density functional theory(DFT) calculations. This material is closely related to PtSn$_{4}$, which exhibits exotic topological properties such as Dirac node arcs. Fermi surface(FS) of PtPb$_{4}$ consists of two electron pockets at the center of the Brillouin zone(BZ) and several hole pockets around the zone boundaries. Our ARPES data reveals significant Rashba splitting at the $\Gamma$ point in agreement with DFT calculations. The presence of Rashba splitting may render this material of potential interest for spintronic applications.
Databáze: arXiv