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  High-Pressure High-Temperature Stability and Thermal Equation of State of Zircon-Type Erbium Vanadate

Ruiz-Fuertes, J., Martínez-García, D., Marqueño, T., Errandonea, D., MacLeod, S. G., Bernert, T., et al. (2018). High-Pressure High-Temperature Stability and Thermal Equation of State of Zircon-Type Erbium Vanadate. Inorganic Chemistry, 57(21), 14005-14012. doi:10.1021/acs.inorgchem.8b01808.

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Ruiz-Fuertes, Javier1, Author
Martínez-García, Domingo2, Author
Marqueño, Tomás2, Author
Errandonea, Daniel2, Author
MacLeod, Simon G.3, 4, Author
Bernert, Thomas5, Author              
Haussühl, Eiken6, Author
Santamaría-Pérez, David2, Author
Ibáñez, Jordi7, Author
Mallavarapu, Anitha8, Author
Achary, S. Nagabhusan9, Author
Popescu, Catalin10, Author
Bettinelli, Marco11, Author
Affiliations:
1DCITIMAC, Universidad de Cantabria, Avenida Los Castros 48, 39005 Santander, Spain, ou_persistent22              
2Departament de Física Aplicada, Universitat de València, Dr. Moliner 50, 46100 Burjassot, Spain, ou_persistent22              
3Atomic Weapons Establishment, Aldermaston, Reading RG7 4PR, United Kingdom, ou_persistent22              
4SUPA, School of Physics & Astronomy, and Centre for Science at Extreme Conditions, The University of Edinburgh, Edinburgh EH9 3FD, United Kingdom, ou_persistent22              
5Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              
6Institut für Geowissenshaften, Goethe-Universität Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany, ou_persistent22              
7Institute of Earth Sciences Jaume Almera, CSIC, 08028 Barcelona, Spain, ou_persistent22              
8Material Processing & Corrosion Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India, ou_persistent22              
9Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India, ou_persistent22              
10CELLS-ALBA Synchrotron Light Facility, Cerdanyola del Vallés, 08290 Barcelona, Spain, ou_persistent22              
11Laboratorio Materiali Luminescenti, DB, Università di Verona, and INSTM, UdR Verona, 37134 Verona, Italy, ou_persistent22              

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 Abstract: The zircon to scheelite phase boundary of ErVO4 has been studied by high-pressure and high-temperature powder and single-crystal X-ray diffraction. This study has allowed us to delimit the best synthesis conditions of its scheelite-type phase, determine the ambient-temperature equation of state of the zircon and scheelite-type structures, and obtain the thermal equation of state of the zircon-type polymorph. The results obtained with powder samples indicate that zircon-type ErVO4 transforms to scheelite at 8.2 GPa and 293 K and at 7.5 GPa and 693 K. The analyses yield bulk moduli K0 of 158(13) GPa for the zircon phase and 158(17) GPa for the scheelite phase, with a temperature derivative of dK0/dT = −[3.8(2)] × 10–3 GPa K–1 and a volumetric thermal expansion of α0 = [0.9(2)] × 10–5 K–1 for the zircon phase according to the Berman model. The results are compared with those of other zircon-type vanadates, raising the need for careful experiments with highly crystalline scheelite to obtain reliable bulk moduli of this phase. Finally, we have performed single-crystal diffraction experiments from 110 to 395 K, and the obtained volumetric thermal expansion (α0) for zircon-type ErVO4 in the 300–395 K range is [1.4(2)] × 10–5 K–1, in good agreement with previous data and with our experimental value given from the thermal equation of state fit within the limits of uncertainty.

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Language(s): eng - English
 Dates: 2018-07-052018-10-292018-11-05
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.inorgchem.8b01808
 Degree: -

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Title: Inorganic Chemistry
  Abbreviation : Inorg. Chem.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 57 (21) Sequence Number: - Start / End Page: 14005 - 14012 Identifier: ISSN: 0020-1669
CoNE: https://pure.mpg.de/cone/journals/resource/0020-1669