Fermi surface and nested magnetic breakdown in WTe2

J. F. Linnartz; C. S. A. Müller; Yu-Te Hsu; C. Breth Nielsen; M. Bremholm; N. E. Hussey. A. Carrington; S. Wiedmann

doi:10.1103/PhysRevResearch.4.L012005

Fermi surface and nested magnetic breakdown in WTe2

Mesoscale and Nanoscale Physics 2022-04-22 v1 Strongly Correlated Electrons

Authors: J. F. Linnartz , C. S. A. Müller , Yu-Te Hsu , C. Breth Nielsen , M. Bremholm , N. E. Hussey. A. Carrington , S. Wiedmann

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Abstract

We report a detailed Shubnikov-de Haas (SdH) study on the Weyl type-II semimetal WTe2 in magnetic fields up to 29 T. By using the SdH results to guide our density functional theory calculations, we are able to accurately determine its Fermi surface by employing a moderate Hubbard U term, which is an essential step in explaining the unusual electronic properties of this much studied material. In addition to the fundamental orbits, we observe magnetic breakdown, which can consistently be explained within the model of a Russian-doll-nested Fermi surface of electron and hole pockets. The onset of magnetic breakdown in WTe2 is solely determined by impurity damping in contrast to magnetic breakdown scenarios in other metallic systems.

Keywords

fermi surface weyl semimetals magnetoresistance

Cite

@article{arxiv.2204.09977,
  title  = {Fermi surface and nested magnetic breakdown in WTe2},
  author = {J. F. Linnartz and C. S. A. Müller and Yu-Te Hsu and C. Breth Nielsen and M. Bremholm and N. E. Hussey. A. Carrington and S. Wiedmann},
  journal= {arXiv preprint arXiv:2204.09977},
  year   = {2022}
}

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5 pages, 4 figures

Fermi surface and nested magnetic breakdown in WTe2

Abstract

Keywords

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