Magnetoresistance of semi-metals: The case of antimony - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Materials Année : 2018

Magnetoresistance of semi-metals: The case of antimony

Résumé

Large unsaturated magnetoresistance has been recently reported in numerous semi-metals. Many of them have a topologically non-trivial band dispersion, such as Weyl nodes or lines. Here, we show that elemental antimony displays the largest high-field magnetoresistance among all known semi-metals. We present a detailed study of the angle-dependent magnetoresistance and use a semi-classical framework invoking an anisotropic mobility tensor to fit the data. A slight deviation from perfect compensation and a modest variation with magnetic field of the components of the mobility tensor are required to attain perfect fits at arbitrary strength and orientation of magnetic field in the entire temperature window of study. Our results demonstrate that large orbital magnetoresistance is an unavoidable consequence of low carrier concentration and the sub-quadratic magnetoresistance seen in many semi-metals can be attributed to field-dependent mobility, expected whenever the disorder length-scale exceeds the Fermi wavelength.
Fichier principal
Vignette du fichier
1803.00931.pdf (1.51 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01952951 , version 1 (12-06-2019)

Identifiants

Citer

Benoît Fauqué, Xiaojun Yang, Wojciech Tabis, Mingsong Shen, Zengwei Zhu, et al.. Magnetoresistance of semi-metals: The case of antimony. Physical Review Materials, 2018, 2 (11), pp.114201. ⟨10.1103/PhysRevMaterials.2.114201⟩. ⟨hal-01952951⟩
89 Consultations
175 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More