Eur. Phys. J. B (2015) 88: 225
https://doi.org/10.1140/epjb/e2015-60013-x

Regular Article

Effect of electronic band dispersion curvature on de Haas-van Alphen oscillations

¹ Institut Jean Lamour, Département de Physique de la Matière et des Matériaux, Groupe de Physique Statistique, CNRS-Nancy-Université, BP 70239, 54506 Vandoeuvre les Nancy Cedex, France
² Laboratoire National des Champs Magnétiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS) 143 avenue de Rangueil, 31400 Toulouse, France

^a e-mail: fortin@ijl.nancy-universite.fr

Received: 7 January 2015
Received in final form: 9 April 2015
Published online: 9 September 2015

Abstract

The effect of electronic band curvature, i.e. the deviation from parabolicity of electronic dispersion, on de Haas-van Alphen oscillations spectra is studied. Although the oscillation amplitude remains unaffected, it is demonstrated that non-quadratic terms of the Landau bands dispersion, which is particularly relevant in the case of Dirac fermions, induce a field- and temperature-dependent Onsager phase. As a result, a temperature-dependent shift of the de Haas-van Alphen oscillations frequency is predicted.