Interplay between electron band-anticrossing and charge-density-wave instabilities

P. D. Grigoriev; A. A. Sinchenko; P. A. Vorobyev; A. Hadj-Azzem; P. Lejay; A. Bosak; P. Monceau

doi:10.1103/PhysRevB.100.081109

Interplay between electron band-anticrossing and charge-density-wave instabilities

Strongly Correlated Electrons 2019-08-28 v1

Authors: P. D. Grigoriev , A. A. Sinchenko , P. A. Vorobyev , A. Hadj-Azzem , P. Lejay , A. Bosak , P. Monceau

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Abstract

Our measurements of the Hall coefficient in rare-earth tritelluride compounds reveal a strong hysteresis between cooling and warming in the low temperature range where a second unidirectional charge density wave (CDW) occurs. We show that this effect results from the interplay between two instabilities: band crossing of the Te $p_{x}$ and $p_{y}$ orbitals at the Fermi level and CDW, which have a close energy gain and compete. Calculation of the electron susceptibility at the CDW wave vector with and without band anticrossing reconstruction of the electron spectrum yields a satisfactory estimation of the temperature range of the hysteresis in Hall effect measurements.

Keywords

charge density wave quantum hall effect electronic structure

Cite

@article{arxiv.1906.11125,
  title  = {Interplay between electron band-anticrossing and charge-density-wave instabilities},
  author = {P. D. Grigoriev and A. A. Sinchenko and P. A. Vorobyev and A. Hadj-Azzem and P. Lejay and A. Bosak and P. Monceau},
  journal= {arXiv preprint arXiv:1906.11125},
  year   = {2019}
}

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10 pages, 5 pages main text + 5 pages supplemental materials, 7 figures

Interplay between electron band-anticrossing and charge-density-wave instabilities

Abstract

Keywords

Cite

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