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Galvanomagnetic properties in the spin-density-wave phase of (TMTSF)_2PF_6

We have measured the magnetoresistance and the Hall effect in the spin-density-wave (SDW) state of (TMTSF)_2PF_6 down to 2K and in magnetic fields up to 9T in order to gain an additional insight into the nature of the possible subphases in the SDW state. We have found that the temperature dependent magnetoresistance anisotropy changes below 4K ; this change being maximal for the current in the lowest conductivity direction. The Hall resistivity has showed different magnetic field dependencies for T>4K and T<4K. The resistivity and the Hall resistivity were also investigated as the function of the electric field. The backflow coefficient alpha does not change below 4K.

magnetotransport ; spin density wave ; TMTSF_2PF_6

Rad je prezentiran na skupu International Workshop on Electronic Crystals (ECRYS-99).