We have studied the angle dependent magnetoresistance of the title compound when the magnetic field rotates in the bc plane. Lebed-type resonance is clearly observed both in Rzz and Rxx. The most remarkable finding is that the resonance effects take place only at the angles corresponding to p/q = odd integers. Also found are additional fast oscillatory parts superposed on the Lebed oscillations, which are clearer in Rzz than in Rxx. Pressure dependence and the effect of mixed anion orderings are investigated.
- Organic superconductors