Anisotropic magnetotransport and extremely large magnetoresistance in NbAs₂ single crystals.

ABSTRACT: We report the extremely large magnetoresistance and anisotropic magnetoresistance in a non-magnetic semimetallic NbAs₂ single crystal. Unsaturated transverse XMR with quadratic field dependence has been observed to be ~3 × 10⁵ % at 2 K and 15 T. Up to 12.5 K, clear Shubnikov de Haas (SdH) quantum oscillations were observed from which two distinct Fermi pockets were identified. The corresponding quantum electronic parameters such as effective cyclotron mass and Dingle temperature were obtained using Lifshitz-Kosevich formula. From the field dependent Hall resistivity at 2 K, carrier concentrations n _e (n _h ) = 6.7691 (6.4352) × 10²⁵ m^-3 and mobilities μ _e (μ _h ) = 5.6676 (7.6947) m² V^-1</

SUBMITTER: Peramaiyan G 

PROVIDER: S-EPMC5913139 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature