Damping of field-induced chemical potential oscillations in ideal two-band compensated metals

Jean-Yves Fortin (1) , Alain Audouard (2)

1 LPTH - Laboratoire de Physique Théorique
2 LNCMP - Laboratoire National des Champs Magnétiques Pulsés

The field and temperature dependence of the de Haas-van Alphen oscillations spectrum is studied for an ideal two-dimensional compensated metal. It is shown that the chemical potential oscillations, involved in the frequency combinations observed in the case of uncompensated orbits, are strongly damped and can even be suppressed when the effective masses of the electron- and hole-type orbits are the same. When magnetic breakdown between bands occurs, this damping is even more pronounced and the Lifshits-Kosevich formalism accounts for the data in a wide field range.

Domaines: Mécanique statistique [cond-mat.stat-mech]

Jean-Yves Fortin, Alain Audouard. Damping of field-induced chemical potential oscillations in ideal two-band compensated metals. 2008. ⟨hal-00172037v2⟩