NUCLEAR-SPIN-LATTICE RELAXATION IN THE ORGANIC SUPERCONDUCTOR (BEDT-TTF)(2)CU[N(CN)(2)]BR0.8CL0.2

Authors
SKRIPOV AV ALEKSASHIN BA CHEREPANOV YG SIBIRTSEV DS KUSHCH ND
Citation
Av. Skripov et al., NUCLEAR-SPIN-LATTICE RELAXATION IN THE ORGANIC SUPERCONDUCTOR (BEDT-TTF)(2)CU[N(CN)(2)]BR0.8CL0.2, Physics of the solid state, 39(1), 1997, pp. 32-34
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
39
Issue
1
Year of publication
1997
Pages
32 - 34
Database
ISI
SICI code
1063-7834(1997)39:1<32:NRITOS>2.0.ZU;2-U
Abstract
The behavior of the spin-lattice relaxation rate of H-1 nuclei in the organic superconductor (BEDT-TTF)(2)Cu[N(CN)(2)]Br0.8Cl0.2 in the temp erature interval 12-319 K is investigated. A relaxation rate maximum, which depends on the resonance frequency and is associated with therma lly activated vibrations of the end ethylene groups in the BEDT-TTF mo lecules, is observed in the vicinity of 270 K. The relaxation rate is observed to deviate from Korringa behavior at T < 100 K. These deviati ons can be attributed to the existence of strong antiferromagnetic spi n correlations. (C) 1997 American Institute of Physics.