Muon study of the spin dynamics in the organic spin-peierls compound MEM(TCNQ)(2)

Authors
Lovett, BW Blundell, SJ Jestadt, T Pratt, FL Kurmoo, M Tagaki, S Hayes, W
Citation
Bw. Lovett et al., Muon study of the spin dynamics in the organic spin-peierls compound MEM(TCNQ)(2), SYNTH METAL, 103(1-3), 1999, pp. 2034-2037
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
103
Issue
1-3
Year of publication
1999
Pages
2034 - 2037
Database
ISI
SICI code
0379-6779(199906)103:1-3<2034:MSOTSD>2.0.ZU;2-#
Abstract
We report a muon spin relaxation study of the organic spin-Peierls system M EM(TCNQ)(2) over the temperature range 39 mK to 200 K. Our results show a c rossover from Gaussian to exponential relaxation below the spin-Peierls tra nsition temperature. We attribute this change to the effect of a dilute set of static electronic defect spins resulting from the majority of spins fre ezing into a non-magnetic spin singlet state.