A Brillouin scattering study of the quasi-one-dimensional blue bronze, $K_{0.3}MoO_3$

Murugavel, P and Narayana, Chandrabhas and Sood, Ajay K and Rao, CNR (2000) A Brillouin scattering study of the quasi-one-dimensional blue bronze, $K_{0.3}MoO_3$. In: Journal of Physics: Condensed Matter, 12 (12). L225-L231.

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Abstract

Brillouin scattering measurements have been carried out for the first time on $K_{0.3}MoO_3$. The spectrum reveals two bulk modes at 18 and 27 GHz and a Rayleigh surface mode at 6 GHz. Both the bulk modes and the surface mode exhibit 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.

Item Type:	Journal Article
Publication:	Journal of Physics: Condensed Matter
Publisher:	Institute of Physics
Additional Information:	Copyright of this article belongs to Institute of Physics.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	25 Aug 2008
Last Modified:	19 Sep 2010 04:49
URI:	http://eprints.iisc.ac.in/id/eprint/15610

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