High-pressure Raman and infrared spectroscopic studies of ZrP2O7


Autoria(s): Petruska, EA; Muthu, DVS; Carlson, S; Andersen, AM Krogh; Ouyang, L; Kruger, MB
Data(s)

01/01/2010

Resumo

High-pressure Raman and mid-infrared spectroscopic studies were carried out on ZrP2O7 to 23.2 and 13 GPa respectively. In the pressure range 0.7-4.3 GPa the lattice mode at 248 cm(-1) disappears, new modes appear around 380 and 1111 cm(-1) and the strong symmetric stretching mode at 476 cm(-1) softens, possibly indicating a subtle phase transition. Above 8 GPa all the modes broaden, and all of the Raman modes disappear beyond 18 GPa. On decompression from the highest pressure, 23.2, to 0 GPa all of the modes reappear but with larger full width at half maximum. Lattice dynamics of the high temperature phase of ZrP2O7 were studied using first principles method and compared with experimental values. (C) 2009 Elsevier Ltd. All rights reserved.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/25892/1/yuop.pdf

Petruska, EA and Muthu, DVS and Carlson, S and Andersen, AM Krogh and Ouyang, L and Kruger, MB (2010) High-pressure Raman and infrared spectroscopic studies of ZrP2O7. In: Solid State Communications, 150 (5-6). pp. 235-239.

Publicador

Elsevier Science

Relação

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVW-4XRCRTW-1&_user=512776&_coverDate=02%2F28%2F2010&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=590c3fc01fee04e73be11e3d

http://eprints.iisc.ernet.in/25892/

Palavras-Chave #Physics
Tipo

Journal Article

PeerReviewed