L-K treatment of the SdH oscillations in the SDW state of Q1D materials

Abstract We have applied Lifshitz-Kosevich theory to directly fit the high field oscillatory magnetoresistance in the Q-1-dimensional Bechgaard salts in (TMTSF) 2 X (X = AsF 6 or ClO 4 [Q-state]) in their spin density wave states. Values of m * , Dingle temperature, and SdH frequencies are obtained, and the anomalous temperature dependence of the oscillation amplitudes are discussed.