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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2013

Coexistence of Dirac and massive carriers in alpha-(BEDT-TTF)(2)I-3 under hydrostatic pressure

Miguel Monteverde
  • Fonction : Auteur
M. Goerbig
  • Fonction : Auteur
Pascale Auban-Senzier
Fabien Navarin
  • Fonction : Auteur
H. Henck
  • Fonction : Auteur
Claude Pasquier
  • Fonction : Auteur
Cécile Mézière
Patrick Batail
  • Fonction : Auteur
  • PersonId : 992004

Résumé

Transport measurements were performed on the organic layered compound alpha-(BEDT-TTF)(2)I-3 under hydrostatic pressure. The carrier types, densities, and mobilities are determined from the magnetoconductance of alpha-(BEDT-TTF)(2)I-3. While evidence of high-mobility massless Dirac carriers has already been given, we report here their coexistence with low-mobility massive holes. This coexistence seems robust as it has been found up to the highest studied pressure. Our results are in agreement with recent DFT calculations of the band structure of this system under hydrostatic pressure. A comparison with graphene Dirac carriers has also been done.

Domaines

Chimie

Dates et versions

hal-03344545 , version 1 (15-09-2021)

Identifiants

Citer

Miguel Monteverde, M. Goerbig, Pascale Auban-Senzier, Fabien Navarin, H. Henck, et al.. Coexistence of Dirac and massive carriers in alpha-(BEDT-TTF)(2)I-3 under hydrostatic pressure. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2013, 87 (24), Non spécifié. ⟨10.1103/PhysRevB.87.245110⟩. ⟨hal-03344545⟩
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