Rapid oscillations in the organic conductor(TMTSF)2ClO4

Abstract
The magnetoresistance measurements for the quasi-one-dimensional conductor (TMTSF)2ClO4 have been performed over a wide temperature range in order to investigate the mechanism of the anomalous rapid oscillation (RO) behavior. The dependences of the RO's on the electric current and magnetic-field directions, cooling rate, and temperature are investigated in the low-field metallic (M) and the spin-density-wave (SDW) phases for the same crystal. We conclude that the mechanisms of the RO's are different in the two phases. The RO in the M phase is caused by the Stark quantum interference effect—however the mechanism of the RO in the SDW phase is still an open question.