In situ high-pressure synchrotron X-ray diffraction study of the structural stability in NdVO{sub 4} and LaVO{sub 4}
Abstract
Highlights: • NdVO{sub 4} and LaVO{sub 4} were studied under high pressure using synchrotron powder XRD. • Both compounds exhibit first-order phase transitions. • In NdVO{sub 4} the transition involves a symmetry breaking and in LaVO{sub 4} is isomorphic. • The crystal structures of the high-pressure phases are assigned. • Axial and bulk compressibilities are determined. - Abstract: Room-temperature angle-dispersive X-ray diffraction measurements on zircon-type NdVO{sub 4} and monazite-type LaVO{sub 4} were performed in a diamond-anvil cell up to 12 GPa. In NdVO{sub 4}, we found evidence for a non-reversible pressure-induced structural phase transition from zircon to a monazite-type structure at 6.5 GPa. Monazite-type LaVO{sub 4} also exhibits a phase transition but at 8.6 GPa. In this case the transition is reversible and isomorphic. In both compounds the pressure induced transitions involve a large volume collapse. Finally, the equations of state and axial compressibilities for the low-pressure phases are also determined.
- Authors:
-
- CELLS-ALBA Synchrotron Light Facility, Cerdanyola, 08290 Barcelona (Spain)
- Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India)
- Luminiscent Materials Laboratory, DB and INSTM, Università di Verona, Strada Le Grazie 15, I-37134 Verona (Italy)
- Publication Date:
- OSTI Identifier:
- 22345218
- Resource Type:
- Journal Article
- Journal Name:
- Materials Research Bulletin
- Additional Journal Information:
- Journal Volume: 50; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; CERAMICS; COMPRESSIBILITY; CRYSTAL STRUCTURE; MONAZITES; PHASE TRANSFORMATIONS; POWDERS; X-RAY DIFFRACTION; ZIRCON
Citation Formats
Errandonea, D., E-mail: daniel.errandonea@uv.es, Popescu, C., Achary, S. N., Tyagi, A. K., and Bettinelli, M. In situ high-pressure synchrotron X-ray diffraction study of the structural stability in NdVO{sub 4} and LaVO{sub 4}. United States: N. p., 2014.
Web. doi:10.1016/J.MATERRESBULL.2013.10.047.
Errandonea, D., E-mail: daniel.errandonea@uv.es, Popescu, C., Achary, S. N., Tyagi, A. K., & Bettinelli, M. In situ high-pressure synchrotron X-ray diffraction study of the structural stability in NdVO{sub 4} and LaVO{sub 4}. United States. https://doi.org/10.1016/J.MATERRESBULL.2013.10.047
Errandonea, D., E-mail: daniel.errandonea@uv.es, Popescu, C., Achary, S. N., Tyagi, A. K., and Bettinelli, M. 2014.
"In situ high-pressure synchrotron X-ray diffraction study of the structural stability in NdVO{sub 4} and LaVO{sub 4}". United States. https://doi.org/10.1016/J.MATERRESBULL.2013.10.047.
@article{osti_22345218,
title = {In situ high-pressure synchrotron X-ray diffraction study of the structural stability in NdVO{sub 4} and LaVO{sub 4}},
author = {Errandonea, D., E-mail: daniel.errandonea@uv.es and Popescu, C. and Achary, S. N. and Tyagi, A. K. and Bettinelli, M.},
abstractNote = {Highlights: • NdVO{sub 4} and LaVO{sub 4} were studied under high pressure using synchrotron powder XRD. • Both compounds exhibit first-order phase transitions. • In NdVO{sub 4} the transition involves a symmetry breaking and in LaVO{sub 4} is isomorphic. • The crystal structures of the high-pressure phases are assigned. • Axial and bulk compressibilities are determined. - Abstract: Room-temperature angle-dispersive X-ray diffraction measurements on zircon-type NdVO{sub 4} and monazite-type LaVO{sub 4} were performed in a diamond-anvil cell up to 12 GPa. In NdVO{sub 4}, we found evidence for a non-reversible pressure-induced structural phase transition from zircon to a monazite-type structure at 6.5 GPa. Monazite-type LaVO{sub 4} also exhibits a phase transition but at 8.6 GPa. In this case the transition is reversible and isomorphic. In both compounds the pressure induced transitions involve a large volume collapse. Finally, the equations of state and axial compressibilities for the low-pressure phases are also determined.},
doi = {10.1016/J.MATERRESBULL.2013.10.047},
url = {https://www.osti.gov/biblio/22345218},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 50,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 2014},
month = {Sat Feb 01 00:00:00 EST 2014}
}