Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd3Pb

doi:10.1103/PhysRevMaterials.2.081201

This content will become publicly available on August 20, 2019

Title: Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal ${Pd}_{3} Pb$

In this paper, the recent realization of topological electronic states such as Dirac and Weyl fermions in real materials and their potential for future energy and electronics applications has motivated interest in the study of new forms of topological behavior embodied through new materials. Pd ₃Pb is one such candidate predicted recently to host unique topological features, including a dispersionless band near the Fermi level and triple nodal points hosting Dirac fermions and open Fermi arcs. Here, we report the crystal growth and electric transport properties of Pd ₃Pb. Our low field magnetoresistance measurements indicate an anisotropic Fermi surface. We found that Pd ₃Pb manifests a large transverse magnetoresistance, which reaches 650% at 1.8 K and 14 T, and pronounced Shubnikov-de Haas (SdH) oscillations. Preliminary analysis of the field dependence of the SdH oscillations points to the likelihood of nontrivial Berry phase in Pd ₃Pb. Further studies in high field limit are desirable to extend the realization of the topological properties of the predicted novel fermions in this material.

Authors:

Ghimire, N. J. ^[1] ; Khan, Mojammel A. ^[1] ; Botana, A. S. ^[1] ; Jiang, J. S. ^[1] ; Mitchell, J. F. ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: 2018-08-20

Grant/Contract Number:: AC02-06CH11357

Type:: Accepted Manuscript

Journal Name:: Physical Review Materials

Additional Journal Information:: Journal Volume: 2; Journal Issue: 8; Journal ID: ISSN 2475-9953

Publisher:: American Physical Society (APS)

Research Org:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org:: USDOE Office of Science (SC)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Toplogical material; Quantum oscillations; Magnetoresistance

OSTI Identifier:: 1471586

Alternate Identifier(s):: OSTI ID: 1465229


                    Ghimire, N. J., Khan, Mojammel A., Botana, A. S., Jiang, J. S., and Mitchell, J. F.. Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd3Pb.  United States: N. p.,  
        Web.  doi:10.1103/PhysRevMaterials.2.081201.

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                    Ghimire, N. J., Khan, Mojammel A., Botana, A. S., Jiang, J. S., & Mitchell, J. F.. Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd3Pb.  United States.  doi:10.1103/PhysRevMaterials.2.081201.

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                    Ghimire, N. J., Khan, Mojammel A., Botana, A. S., Jiang, J. S., and Mitchell, J. F.. 2018.  
        "Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd3Pb".  United States.  
        doi:10.1103/PhysRevMaterials.2.081201.

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@article{osti_1471586,

  title        = {Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd3Pb},

  author       = {Ghimire, N. J. and Khan, Mojammel A. and Botana, A. S. and Jiang, J. S. and Mitchell, J. F.},

  abstractNote = {In this paper, the recent realization of topological electronic states such as Dirac and Weyl fermions in real materials and their potential for future energy and electronics applications has motivated interest in the study of new forms of topological behavior embodied through new materials. Pd3Pb is one such candidate predicted recently to host unique topological features, including a dispersionless band near the Fermi level and triple nodal points hosting Dirac fermions and open Fermi arcs. Here, we report the crystal growth and electric transport properties of Pd3Pb. Our low field magnetoresistance measurements indicate an anisotropic Fermi surface. We found that Pd3Pb manifests a large transverse magnetoresistance, which reaches 650% at 1.8 K and 14 T, and pronounced Shubnikov-de Haas (SdH) oscillations. Preliminary analysis of the field dependence of the SdH oscillations points to the likelihood of nontrivial Berry phase in Pd3Pb. Further studies in high field limit are desirable to extend the realization of the topological properties of the predicted novel fermions in this material.},

  doi          = {10.1103/PhysRevMaterials.2.081201},

  journal      = {Physical Review Materials},

  number       = 8,

  volume       = 2,

  place        = {United States},

  year         = {2018},

  month        = {8}

}

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Free Publicly Accessible Full Text
This content will become publicly available on August 20, 2019
Publisher's Version of Record
10.1103/PhysRevMaterials.2.081201
https://doi.org/10.1103/PhysRevMaterials.2.081201

Works referenced in this record:

Generalized Gradient Approximation Made Simple
journal, October 1996

Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
DOI: 10.1103/PhysRevLett.77.3865

Topological Insulator Materials
journal, October 2013

Ando, Yoichi
Journal of the Physical Society of Japan, Vol. 82, Issue 10, Article No. 102001
DOI: 10.7566/JPSJ.82.102001

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Title: Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd 3 Pb

Access journal articles and accepted manuscripts
resulting from DOE research funding

Title: Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal ${Pd}_{3} Pb$