Angular Oscillations in the Low Pressure Metallic State of (TMTSF)2PF6

Magnetoresistance rotation data in the low pressure metallic phase of (TMTSF)2PF6 are well reproduced by semiclassical calculations. Under the condition of a finite perpendicular magnetic field component Bb, a-c plane resonances are found to smoothly transform into b-c Lebed resonances. Direct b-c rotations fail to exhibit power law scaling in ρzz(Bc). This means that benchmarks recently suggested by an incoherent interlayer transport model for non-Fermi liquid behavior are not met, in contrast to results at higher pressure (P~10kbar). Saturating magnetoresistances for B//b, however, appear nonclassical. More definitive criteria on what is and is not a Fermi liquid are going to be necessary in order to determine the ultimate fate of this and other low dimensional conductors.