Distinct Electronic Structure for the Extreme Magnetoresistance in YSb
  An extreme magnetoresistance (XMR) has recently been observed in several non-magnetic 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. 
Junfeng He, Chaofan Zhang, Nirmal J. Ghimire, Tian Liang, Chunjing   Jia, Juan Jiang, Shujie Tang, Sudi Chen, Yu He, S.-K. M...
cond-mat.str-el cond-mat.mtrl-sci