@article{317aa5f75a094547ab800452f9f95c6f,
title = "Rashba-like spin splitting along three momentum directions in trigonal layered PtBi2 ",
abstract = "Spin-orbit coupling (SOC) has gained much attention for its rich physical phenomena and highly promising applications in spintronic devices. The Rashba-type SOC in systems with inversion symmetry breaking is particularly attractive for spintronics applications since it allows for flexible manipulation of spin current by external electric fields. Here, we report the discovery of a giant anisotropic Rashba-like spin splitting along three momentum directions (3D Rashba-like spin splitting) with a helical spin polarization around the M points in the Brillouin zone of trigonal layered PtBi2. Due to its inversion asymmetry and reduced symmetry at the M point, Rashba-type as well as Dresselhaus-type SOC cooperatively yield a 3D spin splitting with αR ≈ 4.36 eV {\AA} in PtBi2. The experimental realization of 3D Rashba-like spin splitting not only has fundamental interests but also paves the way to the future exploration of a new class of material with unprecedented functionalities for spintronics applications.",
author = "Ya Feng and Qi Jiang and Baojie Feng and Meng Yang and Tao Xu and Wenjing Liu and Xiufu Yang and Masashi Arita and Schwier, {Eike F.} and Kenya Shimada and Jeschke, {Harald O.} and Ronny Thomale and Youguo Shi and Xianxin Wu and Shaozhu Xiao and Shan Qiao and Shaolong He",
note = "Funding Information: The authors would like to thank Darren Peets and Hongxin Yang for helpful discussion. This work is supported by the National Key Research and Development Program of China (Nos. 2017YFA0303600, 2016YFA0300600, and 2017YFA0302901), the National Natural Science Foundation of China (Grant Nos. 11674367,11227902,11927807, U1632266, and 11774399), the Natural Science Foundation of Zhejiang, China (LZ18A040002), the Ningbo Science and Technology Bureau (Grant No. 2018B10060), the German Science Foundation through DFG-SFB 1170 “TOCOTRONICS” (project B04). We acknowledge further financial support from the DFG through the W{\"u}rzburg–Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter—ct.qmat (EXC 2147, project-id 39085490). S.L.H. would like also to acknowledge the Ningbo 3315 program. We thank the Hiroshima Synchrotron Radiation Center for providing beamtime (project nos. 18AU013, 18AU017, and 18AG018).",
year = "2019",
month = dec,
day = "1",
doi = "10.1038/s41467-019-12805-2",
language = "English",
volume = "10",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}