Dissimilarity between metallic-like transport in the dielectric spin density wave and field induced spin density wave states in (TMTSF) 2PF 6
A. V. Kornilov, V. M. Pudalov, Y. Kitaoka+, K. Ishida+, T. Mito+, N. Tateiwa*, T. C. Kobayashi*, J. S. Qualls
P. N. Lebedev Physics Institute RAS, 119991 Moscow, Russia +Division of Material Physics, School of Engineering Science, Osaka University, 560-8531 Osaka, Japan *Research Center for Materials Science at Extreme Condition, Osaka University, 560-8531 Osaka, Japan Wake Forest University, NC 27109, Winston-Salem, USA
PACS: 72.15.Gd, 74.70.Kn, 75.30.Fv
Abstract
We report similarities and differences of the transport features
in the spin density wave (SDW) and in the field induced SDW (FISDW) phases of
the quasi one-dimensional compound (TMTSF)2PF6. As temperature
decreases below K, the resistance in both phases exhibits a
maximum and a subsequent strong drop.
However, the characteristic temperature of the R(T) maximum and its
scaling behavior in different magnetic fields B evidence that the
non-monotonic R(T) dependences have different origin in SDW and FISDW
regions of the phase diagram. We also found that the borderline T0(B,P)
which divides the FISDW region of the P-B-T-phase diagram into the
hysteresis and non-hysteresis domains, terminates in the N=1
sub-phase; the borderline has thus no extension to the SDW N=0 phase.
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