ECRYS - 93
J. Phys. IV France 03 (1993) C2-293-C2-298
Magnetic field influence on the spin-density wave of the organic conductor (TMTSF)2NO3S. TOMIC1, N. BISKUP1, B. KORIN-HAMZIC1, M. BASLETIC2, A. HAMZIC2, K. MAKI3, J.-M. FABRE4 and K. BECHGAARD5
1 Institute of Physics of the University, P.O. Box 304, 41000 Zagreb, Croatia
2 Department of Physics, Faculty of Science, P.O. Box 162, 41000 Zagreb, Croatia
3 Department of Physics, University of Southern California, Los Angeles, CA 90089-0484, U.S.A.
4 Université de Montpellier II, USTL, 34095 Montpellier France
5 University of Copenhagen, CISMI, DK 2100, Denmark
We present the influence of a transverse magnetic field on the spindensity wave (SDW) ground state of the organic conductor (TMTSF)2NO3. Magnetic field increases the single-particle activation energy. A finite magnetic field (HC induces discontinuities in the magnetoresistance behaviour and its value is temperature dependent. The threshold electric field (ET) for the SDW sliding increases in a magnetic field. All observed effects are strongly angle-dependent indicating that they are determined by the magnetic field component along the least-conduction (c*) direction. We discuss these results in the framework of a theoretical model for the SDW with large imperfect nesting.
© EDP Sciences 1993