J. Phys. IV France 09 (1999) Pr10-235-Pr10-238
Power law field dependence of the 2D magnetoresistance in (TMTSF)2PF6G. Kriza1, 2, G . Szeghy1, I. Kézsmárki1 and G. Mihály1
1 Institute of Physics, Technical University of Budapest, Budafoki ut 9, 1111 Budapest, Hungary
2 Research Institute for Solid State Physics and Optics, P.O. Box 49, 1525 Budapest, Hungary
The magnetoresistance of the quasi-one-dimensional organic conductor (TMTSF)2PF6 is studied for currents flowing parallel to the best conducting a and second best conducting b directions in magnetic fields perpendicular to the a-b plane under a hydrostatic pressure of 0.8 GPa. As a function of the magnetic field, the magnetoresistance follows a power law ΔR/R = (B/B0)3/2 both in the a and b directions. The a-b plane conductivity anisotropy is field independent. The scaling field B0, characterizing the strength of the magnetoresistance, follows an exponential temperature dependence B0 α exp(T/T0) with a field-independent characteristic temperature T0 = 10 K.
© EDP Sciences 1999