Recent observations of negative longitudinal magnetoresistance in semimetal

Xu Xi-Tong¹, Jia Shuang^{1, 2, †,}

The NLMR reported in NbAs₂ and PdCoO₂. (a) Field dependent LMR for a NbAs₂ single crystal at 1.8 K, 10 K, 50 K, and 100 K when B ‖ i ‖ a. Inset: a standard four-point contact geometry. From Ref. [55]. (b) Inter-planar LMR for a PdCoO₂ single crystal at 1.4 K. The NLMR persists up to 30 T. From Ref. [56].