Magnetotransport properties of
Abstract
We report magnetotransport and de Haas–van Alphen (dHvA) effect studies on MoP2 single crystals, predicted to be a type- II Weyl semimetal with four pairs of robust Weyl points located below the Fermi level and long Fermi arcs. The temperature dependence of resistivity shows a peak before saturation, which does not move with magnetic field. Large nonsaturating magnetoresistance (MR) was observed, and the field dependence of MR exhibits a crossover from semiclassical weak-field B2 dependence to the high-field linear-field dependence, indicating the presence of Dirac linear energy dispersion. In addition, a systematic violation of Kohler's rule was observed, consistent with multiband electronic transport. Strong spin-orbit coupling splitting has an effect on dHvA measurements whereas the angular-dependent dHvA orbit frequencies agree well with the calculated Fermi surface. The cyclotron effective mass ~1.6me indicates the bands might be trivial, possibly since the Weyl points are located below the Fermi level.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1425073
- Alternate Identifier(s):
- OSTI ID: 1406650
- Report Number(s):
- BNL-203216-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1802031
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 19; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wang, Aifeng, Graf, D., Stein, Aaron, Liu, Yu, Yin, Weigui, and Petrovic, Cedomir. Magnetotransport properties of MoP2. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.96.195107.
Wang, Aifeng, Graf, D., Stein, Aaron, Liu, Yu, Yin, Weigui, & Petrovic, Cedomir. Magnetotransport properties of MoP2. United States. https://doi.org/10.1103/PhysRevB.96.195107
Wang, Aifeng, Graf, D., Stein, Aaron, Liu, Yu, Yin, Weigui, and Petrovic, Cedomir. Thu .
"Magnetotransport properties of MoP2". United States. https://doi.org/10.1103/PhysRevB.96.195107. https://www.osti.gov/servlets/purl/1425073.
@article{osti_1425073,
title = {Magnetotransport properties of MoP2},
author = {Wang, Aifeng and Graf, D. and Stein, Aaron and Liu, Yu and Yin, Weigui and Petrovic, Cedomir},
abstractNote = {We report magnetotransport and de Haas–van Alphen (dHvA) effect studies on MoP2 single crystals, predicted to be a type- II Weyl semimetal with four pairs of robust Weyl points located below the Fermi level and long Fermi arcs. The temperature dependence of resistivity shows a peak before saturation, which does not move with magnetic field. Large nonsaturating magnetoresistance (MR) was observed, and the field dependence of MR exhibits a crossover from semiclassical weak-field B2 dependence to the high-field linear-field dependence, indicating the presence of Dirac linear energy dispersion. In addition, a systematic violation of Kohler's rule was observed, consistent with multiband electronic transport. Strong spin-orbit coupling splitting has an effect on dHvA measurements whereas the angular-dependent dHvA orbit frequencies agree well with the calculated Fermi surface. The cyclotron effective mass ~1.6me indicates the bands might be trivial, possibly since the Weyl points are located below the Fermi level.},
doi = {10.1103/PhysRevB.96.195107},
journal = {Physical Review B},
number = 19,
volume = 96,
place = {United States},
year = {2017},
month = {11}
}
Web of Science
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