Origin of the Large Anisotropic g Factor of Holes in Bismuth - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2015

Origin of the Large Anisotropic g Factor of Holes in Bismuth

Résumé

The ratio of the Zeeman splitting to the cyclotron energy (M = ΔEZ/ħωc) for holelike carriers in bismuth has been quantified with great precision by many experiments performed during the past five decades. It exceeds 2 when the magnetic field is along the trigonal axis and vanishes in the perpendicular configuration. Theoretically, however, M is expected to be isotropic and equal to unity in a two-band Dirac model. We argue that a solution to this half-a-century-old puzzle can be found by extending the k · p theory to multiple bands. Our model not only gives a quantitative account of the magnitude and anisotropy of M for holelike carriers in bismuth, but also explains its contrasting evolution with antimony doping and pressure, both probed by new experiments reported here. The present results have important implications for the magnitude and anisotropy of M in other systems with strong spin-orbit coupling.
Fichier principal
Vignette du fichier
2015_PRL_Behnia_Zeeman_splitting (1).pdf (404.25 Ko) Télécharger le fichier

Dates et versions

hal-03984239 , version 1 (12-02-2023)

Identifiants

Citer

Yuki Fuseya, Zengwei Zhu, Benoît Fauqué, Woun Kang, Bertrand Lenoir, et al.. Origin of the Large Anisotropic g Factor of Holes in Bismuth. Physical Review Letters, 2015, 115, pp.216401. ⟨10.1103/PhysRevLett.115.216401⟩. ⟨hal-03984239⟩
4 Consultations
15 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More