Example：10.1021/acsami.1c06204 or Chem. Rev., 2007, 107, 2411-2502
Extended Kohler’s Rule of Magnetoresistance Physical Review X (IF15.762), Pub Date : 2021-11-10, DOI: 10.1103/physrevx.11.041029 Jing Xu, Fei Han, Ting-Ting Wang, Laxman R. Thoutam, Samuel E. Pate, Mingda Li, Xufeng Zhang, Yong-Lei Wang, Roxanna Fotovat, Ulrich Welp, Xiuquan Zhou, Wai-Kwong Kwok, Duck Young Chung, Mercouri G. Kanatzidis, Zhi-Li Xiao
A notable phenomenon in topological semimetals is the violation of Kohler’s rule, which dictates that the magnetoresistance MR obeys a scaling behavior of , where and is the magnetic field, with and being the resistivity at and zero field, respectively. Here, we report a violation originating from thermally induced change in the carrier density. We find that the magnetoresistance of the Weyl semimetal TaP follows an extended Kohler’s rule , with describing the temperature dependence of the carrier density. We show that is associated with the Fermi level and the dispersion relation of the semimetal, providing a new way to reveal information on the electronic band structure. We offer a fundamental understanding of the violation and validity of Kohler’s rule in terms of different temperature responses of . We apply our extended Kohler’s rule to to settle a long-standing debate on the scaling behavior of the normal-state magnetoresistance of a superconductor, namely, , where is the Hall angle. We further validate the extended Kohler’s rule and demonstrate its generality in a semiconductor, InSb, where the temperature-dependent carrier density can be reliably determined both theoretically and experimentally.