Fermi surface and effect of high magnetic fields on the metal–semimetal Peierls-like transition of (TSeT)2Cl

Электронная структура и Ферми поверхность

Автор(и)

  • Vladimir Laukhin Institut Català de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
  • Alain Audouard Laboratoire National des Champs Magnétiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS) 143 Avenue de Rangueil, F-31400 Toulouse, France
  • David Vignolles Laboratoire National des Champs Magnétiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS) 143 Avenue de Rangueil, F-31400 Toulouse, France
  • Loïc Drigo Laboratoire National des Champs Magnétiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS) 143 Avenue de Rangueil, F-31400 Toulouse, France
  • Pere Alemany Departament de Química Física and Institut de Química Teòrica i Computacional (IQTCUB) Universitat de Barcelona, Martí i Franquès 1, Barcelona 08028, Spain
  • Enric Canadell Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, Bellaterra 08193, Spain

DOI:

https://doi.org/10.1063/1.4869586%20

Ключові слова:

Fermi surface, organic metals, metal–semimetal phase transition, field-dependent resistance.

Анотація

Resistance measurements in pulsed magnetic fields up to 55 T as well as a first-principles DFT calculation of the Fermi surface for the organic metal (TSeT)2Cl have been performed to investigate its metal–semimetal phase transition. The results obtained are in line with the imperfect nesting that can be inferred from both the observed metallic behavior of the resistivity at low temperature and the previously reported Shubnikov–de Haas oscillations due to small carrier pockets. The DFT study points out the possibility that the LUMO bands of the TSeT donor may interact with the HOMO ones and modify the shape of the Fermi surface under pressure.

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Опубліковано

2014-02-14

Як цитувати

(1)
Laukhin, V.; Audouard, A.; Vignolles, D.; Drigo, L.; Alemany, P.; Canadell, E. Fermi Surface and Effect of High Magnetic Fields on the metal–semimetal Peierls-Like Transition of (TSeT)2Cl: Электронная структура и Ферми поверхность. Fiz. Nizk. Temp. 2014, 40, 400-404.

Номер

Том 40 № 4 (2014)

Розділ

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