Orientation dependence of the negative Hall phase in (TMTSF)(2)ClO4 was stu
died in presence of a large in-plane magnetic fields. Rotations within the
b - c crystallographic plane reveal a highly anisotropic behavior in the ma
gnitude of the negative Hall state. A discernible oscillation in the magnit
ude of the negative Hall states is observed as a function of angle. We iden
tify the Lebed resonance associated with the commensurate electronic motion
in the negative Hall state.