| Structural investigation of LaAlO(3) up to 63 GPa. | |
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MedLine Citation:
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PMID: 21900739 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We report a high-pressure synchrotron x-ray diffraction on a LaAlO(3) single crystal. The transition from rhombohedral to cubic at 14.8 GPa is confirmed by the loss of the superstructure reflections, whose intensity shows a linear pressure dependence, characteristic of a second-order transition. The crystal remains cubic up to 63 GPa, the highest pressure reached, which provides a confirmation over a very large pressure range of the general rules for the evolution of distortions of perovskites under pressure. We report the parameters of the Birch-Murnaghan equations of state in the low- and high-pressure phases and discuss the evolution of the bulk modulus. |
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Authors:
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Mael Guennou; Pierre Bouvier; Gaston Garbarino; Jens Kreisel |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-08 |
Journal Detail:
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Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 23 ISSN: 1361-648X ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: - |
Other Details:
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Languages: ENG Pagination: 395401 Citation Subset: - |
Affiliation:
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Laboratoire des Matériaux et du Génie Physique, CNRS, Grenoble INP, MINATEC, 3 parvis Louis Néel, 38016 Grenoble, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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