skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pressure-induced transition in Tl{sub 2}MoO{sub 4}

Abstract

Tl{sub 2}MoO{sub 4} has been studied under high-pressure by X-ray diffraction, Raman spectroscopy, and optical absorption measurements. A first-order phase transition is observed at 3.5{+-}0.5 GPa. The nature (ordered vs. disordered) of the high-pressure phase strongly depends on the local hydrostatic conditions. Optical absorption measurements tend to show that this transition is concomitant with an electronic structure transformation. Prior to the transition, single crystal X-ray diffraction shows that pressure induces interactions between MoO{sub 4} fragments and the Mo coordination number tends to increase. In addition, the stereoactivity of the lone-pair electrons on the three symmetrically independent Tl-sites is not uniform; while for two sites the stereoactivity decreases with increasing pressures for the third site the stereoactivity increases. - Graphical Abstract: (up) Structural evolutions of Tl{sub 2}MoO{sub 4} in the low-pressure phase. (Down) Optical properties of the high-pressure phase as a function of pressure. Display Omitted

Authors:
 [1];  [2];  [3];  [2]
  1. Universite de Lyon, F-69000, France - Univ. Lyon 1, Laboratoire PMCN, CNRS, UMR 5586, F-69622 Villeurbanne Cedex (France)
  2. Departamento de Fisica de la Materia Condensada, Facultad de Ciencia y Tecnologia, Universidad del Pais Vasco, Apartado 644, 48080 Bilbao (Spain)
  3. Departamento de Fisica Aplicada II, Facultad de Ciencia y Tecnologia, Universidad del Pais Vasco, Apartado 644, 48080 Bilbao (Spain)
Publication Date:
OSTI Identifier:
21494110
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 183; Journal Issue: 11; Other Information: DOI: 10.1016/j.jssc.2010.08.036; PII: S0022-4596(10)00370-1; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; COORDINATION NUMBER; ELECTRONIC STRUCTURE; INTERACTIONS; MOLYBDATES; MONOCRYSTALS; OPTICAL PROPERTIES; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; RAMAN SPECTROSCOPY; THALLIUM COMPOUNDS; TRANSFORMATIONS; X-RAY DIFFRACTION; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; LASER SPECTROSCOPY; MOLYBDENUM COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PRESSURE RANGE; REFRACTORY METAL COMPOUNDS; SCATTERING; SORPTION; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Machon, Denis, Friese, Karen, Breczewski, Tomasz, and Grzechnik, Andrzej. Pressure-induced transition in Tl{sub 2}MoO{sub 4}. United States: N. p., 2010. Web. doi:10.1016/j.jssc.2010.08.036.
Machon, Denis, Friese, Karen, Breczewski, Tomasz, & Grzechnik, Andrzej. Pressure-induced transition in Tl{sub 2}MoO{sub 4}. United States. https://doi.org/10.1016/j.jssc.2010.08.036
Machon, Denis, Friese, Karen, Breczewski, Tomasz, and Grzechnik, Andrzej. 2010. "Pressure-induced transition in Tl{sub 2}MoO{sub 4}". United States. https://doi.org/10.1016/j.jssc.2010.08.036.
@article{osti_21494110,
title = {Pressure-induced transition in Tl{sub 2}MoO{sub 4}},
author = {Machon, Denis and Friese, Karen and Breczewski, Tomasz and Grzechnik, Andrzej},
abstractNote = {Tl{sub 2}MoO{sub 4} has been studied under high-pressure by X-ray diffraction, Raman spectroscopy, and optical absorption measurements. A first-order phase transition is observed at 3.5{+-}0.5 GPa. The nature (ordered vs. disordered) of the high-pressure phase strongly depends on the local hydrostatic conditions. Optical absorption measurements tend to show that this transition is concomitant with an electronic structure transformation. Prior to the transition, single crystal X-ray diffraction shows that pressure induces interactions between MoO{sub 4} fragments and the Mo coordination number tends to increase. In addition, the stereoactivity of the lone-pair electrons on the three symmetrically independent Tl-sites is not uniform; while for two sites the stereoactivity decreases with increasing pressures for the third site the stereoactivity increases. - Graphical Abstract: (up) Structural evolutions of Tl{sub 2}MoO{sub 4} in the low-pressure phase. (Down) Optical properties of the high-pressure phase as a function of pressure. Display Omitted},
doi = {10.1016/j.jssc.2010.08.036},
url = {https://www.osti.gov/biblio/21494110}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 11,
volume = 183,
place = {United States},
year = {Mon Nov 15 00:00:00 EST 2010},
month = {Mon Nov 15 00:00:00 EST 2010}
}