Magnetotransport properties of MoP2

Wang, Aifeng; Graf, D.; Stein, Aaron; Liu, Yu; Yin, Weigui; Petrovic, Cedomir

doi:10.1103/PhysRevB.96.195107

Title: Magnetotransport properties of ${MoP}_{2}$

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 ~1.6m_e indicates the bands might be trivial, possibly since the Weyl points are located below the Fermi level.

Authors:

Wang, Aifeng ^[1]; Graf, D. ^[2]; Stein, Aaron ^[1]; Liu, Yu ^[1]; Yin, Weigui ^[1]; Petrovic, Cedomir ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)

Publication Date:: 2017-11-02

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.

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                    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

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                    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.

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@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}

}

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Title: Magnetotransport properties of MoP 2

Abstract

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Title: Magnetotransport properties of ${MoP}_{2}$

Generalized Gradient Approximation Made Simple
journal, October 1996

Magnetotransport properties of the type-II Weyl semimetal candidate ${Ta}_{3} S_{2}$
journal, November 2016

Fermi surface of the Weyl type-II metallic candidate ${WP}_{2}$
journal, September 2017

Large magnetoresistance in the type-II Weyl semimetal ${WP}_{2}$
journal, September 2017

Observation of the Chiral-Anomaly-Induced Negative Magnetoresistance in 3D Weyl Semimetal TaAs
journal, August 2015

Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides $X P_{2}$ ( $X = Mo$ , W)
journal, August 2016

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journal, November 2015

Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids
journal, December 2015

Large, non-saturating magnetoresistance in WTe2
journal, September 2014

Temperature-dependent magnetoresistance of pure aluminum and dilute Al-Ga and Al-Mg alloys
journal, January 1976

Topological Materials: Weyl Semimetals
journal, March 2017

Both Electron and Hole Dirac Cone States in $Ba (FeAs)_{2}$ Confirmed by Magnetoresistance
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Eine Anomalie in der Temperaturabhägigkeit der transversalen magnetischen Widerstandserhöhung von Kupfer
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