A Brillouin scattering study of the quasi-one-dimensional blue bronze, K0.3MoO3

Authors
Murugavel, P Narayana, C Sood, AK Rao, CNR
Citation
P. Murugavel et al., A Brillouin scattering study of the quasi-one-dimensional blue bronze, K0.3MoO3, J PHYS-COND, 12(12), 2000, pp. L225-L231
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
12
Issue
12
Year of publication
2000
Pages
L225 - L231
Database
ISI
SICI code
0953-8984(20000327)12:12<L225:ABSSOT>2.0.ZU;2-H
Abstract
Brillouin scattering measurements have been carried out for the first time on K0.3MoO3 The spectrum reveals two bulk modes at 18 and 27 GHz and a Rayl eigh surface mode at 6 GHz. Both the bulk modes and the surface mode exhibi t changes at the Peierls transition (180 K). Interestingly, the 18 GHz mode also shows softening at the incommensurate-commensurate transition around 100 K, suggesting the important role of phasons.