title: Magnetotransport of single crystalline NbAs.
abstract: We report transport measurement in zero and applied magnetic field on a single crystal of NbAs. Transverse and longitudinal magnetoresistance in the plane of this tetragonal structure does not saturate up to 9 T. In the transverse configuration (H ∥ c, I ⊥ c) it is 230,000% at 2 K. The Hall coefficient changes sign from hole-like at room temperature to electron-like below ∼150 K. The electron carrier density and mobility calculated at 2 K based on a single band approximation are 1.8 × 10(19) cm(-3) and 3.5 × 10(5) cm(2) Vs(-1), respectively. These values are similar to reported values for TaAs and NbP, and further emphasize that this class of noncentrosymmetric, transition-metal monopnictides is a promising family to explore the properties of Weyl semimetals and the consequences of their novel electronic structure.
authors: Los Alamos National Lab, Los Alamos, NM 87544, USA.
authors: N J
authors: NJ
authors: Ghimire
authors: Yongkang
authors: Y
authors: Luo
authors: M
authors: M
authors: Neupane
authors: D J
authors: DJ
authors: Williams
authors: E D
authors: ED
authors: Bauer
authors: F
authors: F
authors: Ronning