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 SM ISO690:2012GOMIS, Oscar, VILAPLANA, Rosario Isabel, MANJON, Francisco Javier, SANTAMARIA-PEREZ, David, ERRANDONEA, Daniel J.H., PEREZ-GONZALEZ, Eduardo, LOPEZ-SOLANO, Javier, RODRIGUEZ-HERNANDEZ, Placida Rogelio, MUNOZ, Alfonso Gonzalez, TIGINYANU, Ion, URSACHI, Veaceslav. Crystal structure of HgGa2Se4 under compression. In: Materials Research Bulletin, 2013, vol. 48, pp. 2128-2133. ISSN 0025-5408. DOI: https://doi.org/10.1016/j.materresbull.2013.02.037 |
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  Materials Research Bulletin |
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| Volumul 48 / 2013 / ISSN 0025-5408 | |
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| DOI:https://doi.org/10.1016/j.materresbull.2013.02.037 | |
| Pag. 2128-2133 | |
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We report on high-pressure x-ray diffraction measurements up to 17.2 GPa in mercury digallium selenide (HgGa2Se4). The equation of state and the axial compressibilities for the low-pressure tetragonal phase have been determined and compared to related compounds. HgGa2Se 4 exhibits a phase transition on upstroke toward a disordered rock-salt structure beyond 17 GPa, while on downstroke it undergoes a phase transition below 2.1 GPa to a phase that could be assigned to a metastable zinc-blende structure with a total cation-vacancy disorder. Thermal annealing at low- and high-pressure shows that kinetics plays an important role on pressure-driven transitions. |
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| Cuvinte-cheie A. Chalcogénides, C. High pressure, C. X-ray diffraction, D. Crystal structure, D. Phase transitions |
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Dublin Core Export
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>Gomis, O.</dc:creator> <dc:creator>Vilaplana, R.</dc:creator> <dc:creator>Manjon, F.</dc:creator> <dc:creator>Santamaria-Perez, D.</dc:creator> <dc:creator>Errandonea, D.</dc:creator> <dc:creator>Perez-Gonzalez, E.</dc:creator> <dc:creator>Lopez-Solano, J.</dc:creator> <dc:creator>Rodriguez-Hernandez, P.</dc:creator> <dc:creator>Munoz, A.</dc:creator> <dc:creator>Tighineanu, I.M.</dc:creator> <dc:creator>Ursachi, V.V.</dc:creator> <dc:date>2013-06-01</dc:date> <dc:description xml:lang='en'><p>We report on high-pressure x-ray diffraction measurements up to 17.2 GPa in mercury digallium selenide (HgGa<sub>2</sub>Se<sub>4</sub>). The equation of state and the axial compressibilities for the low-pressure tetragonal phase have been determined and compared to related compounds. HgGa<sub>2</sub>Se <sub>4</sub> exhibits a phase transition on upstroke toward a disordered rock-salt structure beyond 17 GPa, while on downstroke it undergoes a phase transition below 2.1 GPa to a phase that could be assigned to a metastable zinc-blende structure with a total cation-vacancy disorder. Thermal annealing at low- and high-pressure shows that kinetics plays an important role on pressure-driven transitions.</p></dc:description> <dc:identifier>10.1016/j.materresbull.2013.02.037</dc:identifier> <dc:source>Materials Research Bulletin () 2128-2133</dc:source> <dc:subject>A. Chalcogénides</dc:subject> <dc:subject>C. High pressure</dc:subject> <dc:subject>C. X-ray diffraction</dc:subject> <dc:subject>D. Crystal structure</dc:subject> <dc:subject>D. Phase transitions</dc:subject> <dc:title>Crystal structure of HgGa2Se4 under compression</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>
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