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High-pressure Raman and infrared study of ZrV2O7

Hemamala, U. L. C. ; El-Ghussein, F. ; Muthu, D. V. S. ; Krogh Andersen, A. M. ; Carlson, Stefan LU ; Ouyang, L. and Kruger, M. B. (2007) In Solid State Communications 141(12). p.680-684
Abstract
The room-temperature Raman and infrared spectra of zirconium vanadate (ZrV2O7) were observed up to pressures of 12 GPa and 5.7 GPa, respectively. The frequencies of the optically active modes at ambient pressure were calculated using direct methods and compared with experimental values. Average mode Gruneisen parameters were calculated for the Raman and infrared active modes. Changes in the spectra under pressure indicate a phase transition at similar to 1.6 GPa, which is consistent with the previously observed a (cubic) to (pseudo-tetragonal) phase transition, and changes in the spectra at similar to 4 GPa are consistent with an irreversible transformation to an amorphous structure. (C) 2007 Elsevier Ltd. All rights reserved.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
light absorption and, inelastic light scattering, strain, high pressure, reflection
in
Solid State Communications
volume
141
issue
12
pages
680 - 684
publisher
Pergamon Press Ltd.
external identifiers
  • wos:000244998600010
  • scopus:33847158898
ISSN
1879-2766
DOI
10.1016/j.ssc.2007.01.003
language
English
LU publication?
yes
id
70ec912a-192e-4000-beba-c75b7e9781d5 (old id 670942)
date added to LUP
2016-04-01 12:31:59
date last changed
2022-01-27 06:21:59
@article{70ec912a-192e-4000-beba-c75b7e9781d5,
  abstract     = {{The room-temperature Raman and infrared spectra of zirconium vanadate (ZrV2O7) were observed up to pressures of 12 GPa and 5.7 GPa, respectively. The frequencies of the optically active modes at ambient pressure were calculated using direct methods and compared with experimental values. Average mode Gruneisen parameters were calculated for the Raman and infrared active modes. Changes in the spectra under pressure indicate a phase transition at similar to 1.6 GPa, which is consistent with the previously observed a (cubic) to (pseudo-tetragonal) phase transition, and changes in the spectra at similar to 4 GPa are consistent with an irreversible transformation to an amorphous structure. (C) 2007 Elsevier Ltd. All rights reserved.}},
  author       = {{Hemamala, U. L. C. and El-Ghussein, F. and Muthu, D. V. S. and Krogh Andersen, A. M. and Carlson, Stefan and Ouyang, L. and Kruger, M. B.}},
  issn         = {{1879-2766}},
  keywords     = {{light absorption and; inelastic light scattering; strain; high pressure; reflection}},
  language     = {{eng}},
  number       = {{12}},
  pages        = {{680--684}},
  publisher    = {{Pergamon Press Ltd.}},
  series       = {{Solid State Communications}},
  title        = {{High-pressure Raman and infrared study of ZrV2O7}},
  url          = {{http://dx.doi.org/10.1016/j.ssc.2007.01.003}},
  doi          = {{10.1016/j.ssc.2007.01.003}},
  volume       = {{141}},
  year         = {{2007}},
}