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Santamaria-Perez D, McGuire C, Makhluf A, Kavner A, Chuliá-Jordan R, Jorda JL, Rey F, Pellicer-Porres J, Martinez-García D, Rodriguez-Hernández P, Muñoz A. Correspondence: Strongly-driven Re+CO 2 redox reaction at high-pressure and high-temperature. Nat Commun 2016; 7:13647. [PMID: 27897171 PMCID: PMC5141295 DOI: 10.1038/ncomms13647] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- D Santamaria-Perez
- Earth, Planetary and Space Sciences Department, University of California Los Angeles, Los Angeles, California 951567, USA.,MALTA-Departamento de Física Aplicada-ICMUV, Universitat de València, 46100 Valencia, Spain
| | - C McGuire
- Earth, Planetary and Space Sciences Department, University of California Los Angeles, Los Angeles, California 951567, USA
| | - A Makhluf
- Earth, Planetary and Space Sciences Department, University of California Los Angeles, Los Angeles, California 951567, USA
| | - A Kavner
- Earth, Planetary and Space Sciences Department, University of California Los Angeles, Los Angeles, California 951567, USA
| | - R Chuliá-Jordan
- MALTA-Departamento de Física Aplicada-ICMUV, Universitat de València, 46100 Valencia, Spain
| | - J L Jorda
- Instituto de Tecnologia Quimica, Universitat Politècnica de València-CSIC, 46022 Valencia, Spain
| | - F Rey
- Instituto de Tecnologia Quimica, Universitat Politècnica de València-CSIC, 46022 Valencia, Spain
| | - J Pellicer-Porres
- MALTA-Departamento de Física Aplicada-ICMUV, Universitat de València, 46100 Valencia, Spain
| | - D Martinez-García
- MALTA-Departamento de Física Aplicada-ICMUV, Universitat de València, 46100 Valencia, Spain
| | - P Rodriguez-Hernández
- MALTA-Departamento de Física, Instituto Univ. de Materiales y Nanotecnología, Universidad de La Laguna, 38207 La Laguna, Tenerife, Spain
| | - A Muñoz
- MALTA-Departamento de Física, Instituto Univ. de Materiales y Nanotecnología, Universidad de La Laguna, 38207 La Laguna, Tenerife, Spain
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Popescu C, Garg AB, Errandonea D, Sans JA, Rodriguez-Hernández P, Radescu S, Muñoz A, Achary SN, Tyagi AK. Pressure-induced phase transformation in zircon-type orthovanadate SmVO4 from experiment and theory. J Phys Condens Matter 2016; 28:035402. [PMID: 26733093 DOI: 10.1088/0953-8984/28/3/035402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The compression behavior of zircon-type samarium orthovanadate, SmVO4, has been investigated using synchrotron-based powder x-ray diffraction and ab initio calculations of up to 21 GPa. The results indicate the instability of ambient zircon phase at around 6 GPa, which transforms to a high-density scheelite-type phase. The high-pressure phase remains stable up to 21 GPa, the highest pressure reached in the present investigations. On pressure release, the scheelite phase is recovered. The crystal structure of the high-pressure phase and the equations of state for the zircon- and scheelite-type phases have been determined. Various compressibilities, such as the bulk, axial and bond compressibilities, estimated from the experimental data are found to be in good agreement with the results obtained from theoretical calculations. The calculated elastic constants show that the zircon structure becomes mechanically unstable beyond the transition pressure. Overall there is good agreement between the experimental and theoretical findings.
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Affiliation(s)
- C Popescu
- CELLS-ALBA Synchrotron Light facility, 08290 Cerdanyola, Barcelona, Spain
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