13C NMR investigation of the linear and nonlinear dynamics of the spin-density wave of (TMTSF)2PF6

E. BARTHEL; G. KRIZA; G.QUIRION; P. WZIETEK; D. JÉROME; J.B. CHRISTENSEN; M. JØRGENSEN; K. BECHGAARD

doi:doi:10.1051/jp4:1993246

Issue		J. Phys. IV France Volume 03, Number C2, Juillet 1993 International Workshop on Electronic Crystals ECRYS - 93


Page(s)		C2-231 - C2-234
DOI		https://doi.org/10.1051/jp4:1993246

International Workshop on Electronic Crystals
ECRYS - 93

J. Phys. IV France 03 (1993) C2-231-C2-234
DOI: 10.1051/jp4:1993246

¹³C NMR investigation of the linear and nonlinear dynamics of the spin-density wave of (TMTSF)₂PF₆

E. BARTHEL¹, G. KRIZA¹, G.QUIRION¹, P. WZIETEK¹, D. JÉROME¹, J.B. CHRISTENSEN², M. JØRGENSEN² and K. BECHGAARD²

¹ Laboratoire de Physique des Solides, Associé au CNRS, Université de Paris-Sud, 91405 Orsay cedex, France
² CISMI, University of Copenhagen, Blegdamsvej 21, 2100 Copenhagen, Denmark

Abstract
The interpretation of our recent measurements of the temperature dependence of the NMR spinlattice relaxation rate in the spin-density wave (SDW) state in (TMTSF)₂PF₆, as well as of our combined conduction noise and NMR spectra measurements in the sliding SDW state is discussed in relation with the prominent features of the electric response. Our measurements suggest that the phason effective mass is equal to the band mass, and show that the condensate density is not strongly reduced, as has been proposed. Consequences on the dynamics of the phason, and especially the so-called pinned mode resonance, are discussed.