| Literature DB >> 28059532 |
Junfeng He1,2, Chaofan Zhang1,2, Nirmal J Ghimire3, Tian Liang1,2, Chunjing Jia1,2, Juan Jiang4,5,6, Shujie Tang1,2, Sudi Chen1,2, Yu He1,2, S-K Mo4, C C Hwang6, M Hashimoto7, D H Lu7, B Moritz1,2, T P Devereaux1,2, Y L Chen5,8, J F Mitchell3, Z-X Shen1,2.
Abstract
An extreme magnetoresistance (XMR) has recently been observed in several nonmagnetic semimetals. Increasing experimental and theoretical evidence indicates that the XMR can be driven by either topological protection or electron-hole compensation. Here, by investigating the electronic structure of a XMR material, YSb, we present spectroscopic evidence for a special case which lacks topological protection and perfect electron-hole compensation. Further investigations reveal that a cooperative action of a substantial difference between electron and hole mobility and a moderate carrier compensation might contribute to the XMR in YSb.Year: 2016 PMID： 28059532 DOI： 10.1103/PhysRevLett.117.267201
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161