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SM ISO690:2012 GOMIS, 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, URSAKI, Veacheslav. 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 | |
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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Rezumat | |
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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<meta name="citation_title" content="Crystal structure of HgGa2Se4 under compression"> <meta name="citation_author" content="Gomis Oscar"> <meta name="citation_author" content="Vilaplana Rosario Isabel"> <meta name="citation_author" content="Manjon Francisco Javier"> <meta name="citation_author" content="Santamaria-Perez David"> <meta name="citation_author" content="Errandonea Daniel J.H."> <meta name="citation_author" content="Perez-Gonzalez Eduardo"> <meta name="citation_author" content="Lopez-Solano Javier"> <meta name="citation_author" content="Rodriguez-Hernandez Placida Rogelio"> <meta name="citation_author" content="Munoz Alfonso Gonzalez"> <meta name="citation_author" content="Tiginyanu Ion"> <meta name="citation_author" content="Ursaki Veacheslav"> <meta name="citation_publication_date" content="2013/06/01"> <meta name="citation_journal_title" content="Materials Research Bulletin"> <meta name="citation_firstpage" content="2128"> <meta name="citation_lastpage" content="2133"> <meta name="citation_pdf_url" content="https://ibn.idsi.md/sites/default/files/imag_file/Gomis_et_al_HgGa2Se4_MRB_Version_Autor.pdf">