Hall effect and conduction anisotropy in the organic conductor (TMTSF)(2)PF6

Both the Hall effect and the ab'-plane conduction anisotropy are directly a ddressing the unconventional normal phase properties of the Bechgaard salt (TMTSF)(2)PF6. We found that the dramatic reduction of the carrier density deduced from recent optical data is not reflected in an enhanced Hall resis tance. The pressure and temperature dependence of the b'-direction resistiv ity reveal isotropic relaxation time and do not require explanations beyond the Fermi liquid theory. Our results allow a coherent-diffusive transition in the interchain carrier propagation, however the possible crossover to L uttinger liquid behavior is placed at an energy scale above room temperatur e.