Spin-Peierls fluctuations in (TMTTF)(2)Br studied by pulsed electron spin resonance spin-lattice relaxation - art. no. 172404

Authors
Zorko, A Arcon, D Biljakovic, K Carcel, C Fabre, JM Dolinsek, J
Citation
A. Zorko et al., Spin-Peierls fluctuations in (TMTTF)(2)Br studied by pulsed electron spin resonance spin-lattice relaxation - art. no. 172404, PHYS REV B, 6417(17), 2001, pp. 2404
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6417
Issue
17
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011101)6417:17<2404:SFI(SB>2.0.ZU;2-C
Abstract
Spin-Peierls lattice fluctuations were studied in the paramagnetic phase of the antiferromagnetic compound (TMTTF)(2)Br by pulsed electron spin resona nce spin-lattice relaxation experiment. The relaxation via long-wavelength acoustic phonons was found to coexist with the relaxation via spin fluctuat ions. becoming the dominant relaxation mechanism in the temperature interva l between about 50 K and just above the antiferromagnetic phase transition. This gives direct evidence on the presence of long-wavelength lattice fluc tuations in the investigated temperature range.