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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, 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:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1233544
Report Number(s):
LA-UR-15-22112
Journal ID: ISSN 0953-8984
Grant/Contract Number:
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 27; Journal Issue: 15; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; semimetal; magnetoresistance

Citation Formats

Ghimire, N. J., Luo, Yongkang, Neupane, M., Williams, D. J., Bauer, E. D., and Ronning, F.. Magnetotransport of single crystalline NbAs. United States: N. p., 2015. Web. doi:10.1088/0953-8984/27/15/152201.
Ghimire, N. J., Luo, Yongkang, Neupane, M., Williams, D. J., Bauer, E. D., & Ronning, F.. Magnetotransport of single crystalline NbAs. United States. doi:10.1088/0953-8984/27/15/152201.
Ghimire, N. J., Luo, Yongkang, Neupane, M., Williams, D. J., Bauer, E. D., and Ronning, F.. Fri . "Magnetotransport of single crystalline NbAs". United States. doi:10.1088/0953-8984/27/15/152201. https://www.osti.gov/servlets/purl/1233544.
@article{osti_1233544,
title = {Magnetotransport of single crystalline NbAs},
author = {Ghimire, N. J. and Luo, Yongkang and Neupane, M. and Williams, D. J. and Bauer, E. D. and Ronning, F.},
abstractNote = {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 × 1019 cm-3 and 3.5 × 105 cm2/Vs, 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.},
doi = {10.1088/0953-8984/27/15/152201},
journal = {Journal of Physics. Condensed Matter},
number = 15,
volume = 27,
place = {United States},
year = {Fri Mar 27 00:00:00 EDT 2015},
month = {Fri Mar 27 00:00:00 EDT 2015}
}

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