L L Lumata et al 2008 J. Phys.: Conf. Ser. 132 012014 doi:10.1088/1742-6596/132/1/012014
L L Lumata1, J S Brooks1, P L Kuhns1, A P Reyes1, S E Brown2, H B Cui1, R C Haddon3 and J-I Yamada4
Show affiliationsWe report angular dependent 77Se NMR measurements on the partially quenched, metallic, and magnetic field-induced spin density wave (FISDW) states of (TMTSF)2CIO4. To correlate the NMR data with the FISDW phase diagram, electrical transport was also measured concurrently in some cases. Similar measurements on (TMTSF)2PF6 allow comparison of the behavior of the NMR signal of the spin density wave (SDW) transition with that of the FISDW transition. We present details of the experimental findings including the enhancement behavior, and correlations of the angular dependence of the NMR spectra with the spin-lattice relaxation rate 1/T1. A possible model to describe the behavior of the NMR signal intensity and 1/T1 in terms of a Hebel-Slichter mechanism upon crossing the metal-FISDW transition is presented.
74.70.Kn Organic superconductors
74.25.Nf Response to electromagnetic fields (nuclear magnetic resonance, surface impedance, etc.)
74.25.Dw Superconductivity phase diagrams
74.25.Fy Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)
Issue 1 (2008)
L L Lumata et al 2008 J. Phys.: Conf. Ser. 132 012014
C Cheng et al 1988 J. Phys. C: Solid State Phys. 21 1049
C Cheng et al 1990 J. Phys.: Condens. Matter 2 5115
Kostas Glampedakis 2005 Class. Quantum Grav. 22 S605
Zhongzhi Zhang et al J. Stat. Mech. (2008) P09008
Kazuhiko Furuya et al 2001 J. Phys.: Condens. Matter 13 3519
A Tip et al 2000 J. Phys. A: Math. Gen. 33 6223
Dave Broomhead et al 2004 Nonlinearity 17 1455
G Friesecke and R L Pego 2002 Nonlinearity 15 1343
G Friesecke and R L Pego 2004 Nonlinearity 17 229