J. Phys. IV France 114 (2004) 113
Unusual magnetic field-induced transition in the low temperature ( T< 1 K) SDW ground state of (TMTSF) 2PF 6J.C. Lasjaunias1, 1, S. Sahling2, K. Biljakovic3 and P. Monceau1, 4
1 CRTBT-CNRS, BP. 166, 38042 Grenoble Cedex 9, France
2 Institut für Angewandte Physik, IAPD, T.U. Dresden, 01069 Dresden, Germany
3 Institute of Physics, PO BOX 304, 10001 Zagreb, Croatia
4 Laboratoire Leon Brillouin, CEA-CNRS, CEA Saclay, 91191 Saclay Cedex, France
We have observed a strong sensitivity to low magnetic field ( T) of the low-temperature specific heat of (TMTSF) 2PF 6 in its spin-density wave ground state. The mostly pronounced manifestation is a sharp maximum at T in the amplitude of Shottky anomaly contribution which dominates the heat capacity below 0.3 K. This effect is independent of the field direction for H // a or b' crystal axis. Key words. One-dimensional Conductors, Density waves, Glassy State, Magnetic field.
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