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 SM ISO690:2012ERRANDONEA, Daniel J.H., KUMAR, Ravhi, GOMIS, Oscar, MANJON, Francisco Javier, URSACHI, Veaceslav, TIGINYANU, Ion. X-ray diffraction study on pressure-induced phase transformations and the equation of state of ZnGa2Te4. In: Journal of Applied Physics, 2013, vol. 114, p. 0. ISSN 0021-8979. DOI: https://doi.org/10.1063/1.4851735 |
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  Journal of Applied Physics |
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| Volumul 114 / 2013 / ISSN 0021-8979 /ISSNe 1089-7550 | ||||||
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| DOI:https://doi.org/10.1063/1.4851735 | ||||||
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We report on high-pressure x-ray diffraction measurements up to 19.8 GPa in zinc digallium telluride (ZnGa2Te4) at room temperature. An irreversible structural phase transition takes place at pressures above 12.1 GPa and upon decompression a third polymorph of ZnGa2Te4 was recovered as a metastable phase at pressures below 2.9 GPa. Rietveld refinements were carried out for the three detected polymorphs, being their possible crystal structures reported. The axial compressibilities for the low-pressure phase of ZnGa2Te4 have been determined as well as the equation of state of the low- and high-pressure phases. The reported results are compared with those available in the literature for related compounds. Pressure-induced coordination changes and transition mechanisms are also discussed. |
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| Cuvinte-cheie Coordination change, High-pressure phasis, High-pressure x-ray diffractions, Pressure-induced phase transformations, Related compounds, Structural phase transition, Transition mechanism, X-ray diffraction studies |
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