High-pressure Raman and infrared study of ZrV2O7

U. L. C. Hemamala; F. El-Ghussein; D. V. S. Muthu; A. M. Krogh Andersen; Stefan Carlson; L. Ouyang; M. B. Kruger

doi:10.1016/j.ssc.2007.01.003

High-pressure Raman and infrared study of ZrV2O7

U. L. C. Hemamala, F. El-Ghussein, D. V. S. Muthu, A. M. Krogh Andersen, Stefan Carlson, L. Ouyang, M. B. Kruger

MAX IV-laboratoriet

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

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.

Originalspråk	engelska
Sidor (från-till)	680-684
Tidskrift	Solid State Communications
Volym	141
Nummer	12
DOI	https://doi.org/10.1016/j.ssc.2007.01.003
Status	Published - 2007

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Naturvetenskap
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10.1016/j.ssc.2007.01.003

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@article{70ec912a192e4000bebac75b7e9781d5,

title = "High-pressure Raman and infrared study of ZrV2O7",

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.",

keywords = "light absorption and, inelastic light scattering, strain, high pressure, reflection",

author = "Hemamala, \{U. L. C.\} and F. El-Ghussein and Muthu, \{D. V. S.\} and \{Krogh Andersen\}, \{A. M.\} and Stefan Carlson and L. Ouyang and Kruger, \{M. B.\}",

year = "2007",

doi = "10.1016/j.ssc.2007.01.003",

language = "English",

volume = "141",

pages = "680--684",

journal = "Solid State Communications",

issn = "1879-2766",

publisher = "Pergamon Press Ltd.",

number = "12",

}

TY - JOUR

T1 - High-pressure Raman and infrared study of ZrV2O7

AU - Hemamala, U. L. C.

AU - El-Ghussein, F.

AU - Muthu, D. V. S.

AU - Krogh Andersen, A. M.

AU - Carlson, Stefan

AU - Ouyang, L.

AU - Kruger, M. B.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

KW - light absorption and

KW - inelastic light scattering

KW - strain

KW - high pressure

KW - reflection

UR - https://www.scopus.com/pages/publications/33847158898

U2 - 10.1016/j.ssc.2007.01.003

DO - 10.1016/j.ssc.2007.01.003

M3 - Article

SN - 1879-2766

VL - 141

SP - 680

EP - 684

JO - Solid State Communications

JF - Solid State Communications

IS - 12

ER -

High-pressure Raman and infrared study of ZrV2O7

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