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Pressure-induced phase transitions in alpha-ZrMo2O8

Muthu, DVS; Chen, B; Wrobel, JM; Andersen, AMK; Carlson, Stefan LU and Kruger, MB (2002) In Physical Review B (Condensed Matter and Materials Physics) 65(6).
Abstract
We report high-pressure Raman, infrared (IR), and optical-absorption spectra of alpha-ZrMo2O8 (trigonal) up to 38 GPa at room temperature. The spectroscopic studies are consistent with diffraction results that show that alpha-ZrMo2O8 transforms into delta-ZrMo2O8 (monoclinic) at about 1 GPa and the delta phase converts to the epsilon phase (trielinic) at about 2.0 GPa. Optical-absorption measurements give an estimate of the band gap of about 0.6 eV at the lowest pressure. Band-gap changes with pressure are confirmed with visual observations. ZrMo2O8 changes from transparent at 5 GPa to yellow at 10 GPa, red at 18 GPa, and at about 30 GPa it becomes opaque.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
65
issue
6
publisher
American Physical Society
external identifiers
  • wos:000173879700013
ISSN
1098-0121
DOI
10.1103/PhysRevB.65.064101
language
English
LU publication?
yes
id
0db29f4f-bfd2-4d9a-82ea-27dcd5f4a598 (old id 343082)
date added to LUP
2007-11-16 10:54:14
date last changed
2016-11-02 15:14:25
@article{0db29f4f-bfd2-4d9a-82ea-27dcd5f4a598,
  abstract     = {We report high-pressure Raman, infrared (IR), and optical-absorption spectra of alpha-ZrMo2O8 (trigonal) up to 38 GPa at room temperature. The spectroscopic studies are consistent with diffraction results that show that alpha-ZrMo2O8 transforms into delta-ZrMo2O8 (monoclinic) at about 1 GPa and the delta phase converts to the epsilon phase (trielinic) at about 2.0 GPa. Optical-absorption measurements give an estimate of the band gap of about 0.6 eV at the lowest pressure. Band-gap changes with pressure are confirmed with visual observations. ZrMo2O8 changes from transparent at 5 GPa to yellow at 10 GPa, red at 18 GPa, and at about 30 GPa it becomes opaque.},
  author       = {Muthu, DVS and Chen, B and Wrobel, JM and Andersen, AMK and Carlson, Stefan and Kruger, MB},
  issn         = {1098-0121},
  language     = {eng},
  number       = {6},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Pressure-induced phase transitions in alpha-ZrMo2O8},
  url          = {http://dx.doi.org/10.1103/PhysRevB.65.064101},
  volume       = {65},
  year         = {2002},
}