Angular magnetoresistance oscillations and the shape of the Fermi surface in β(ET)2IBr2

M. Kartsovnik , V. Laukhin , S. Pesotskii , I. Schegolev , V. Yakovenko

Angular magnetoresistance oscillations have been studied systematically for β-(ET)2 IBr2 in the magnetic field rotating in a series of planes perpendicular to the conducting (a, b)-plane. The oscillations have been found in all studied planes. The shape of the Fermi surface transverse cross-section has been reconstructed using the obtained data. Angular dependence of the slow Shubnikov-de Haas oscillations frequency and some fine features of angular magnetoresistance oscillations permit to discuss also the structure of the Fermi surface longitudinal cross-section. The Fermi surface consists most likely of main cylinders with inclined warping planes and small pockets or necks between them.

Domaines: Articles anciens

M. Kartsovnik, V. Laukhin, S. Pesotskii, I. Schegolev, V. Yakovenko. Angular magnetoresistance oscillations and the shape of the Fermi surface in β(ET)2IBr2. Journal de Physique I, 1992, 2 (1), pp.89-99. ⟨10.1051/jp1:1992125⟩. ⟨jpa-00246466⟩