Angular dependence of magnetoresistance of several Bechgaard salts

摘要

We have studied the magnetoresistance anisotropy (at the ambient pressure) for different (TMTSF)_2X crystals, with the current along the least conducting c direction, and the magnetic field rotated in the (a-b) plane. We compare and contrast the differences between the quenched (Q) and the relaxed (R) state for X=ClO_4, and discuss the differences in the SDW state of X=PF_6, X=ClO_4 (Q) and X=AsF_6.