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First-principles calculations on MgO: Phonon theory versus mean-field potential approach
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2006 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 100, no 2, 023533- p.Article in journal (Refereed) Published
Abstract [en]

Various thermodynamic properties of MgO were studied using both ab initio phonon theory and the mean-field potential (MFP) approach. They include thermal pressure, thermal expansion, the 300 K equation of state, and the shock Hugoniot. It is found that the results of ab initio phonon theory and the MFP approach agree with each other, except that ab initio phonon theory gave a poor description of the thermal pressure when temperature became relatively high.

Place, publisher, year, edition, pages
2006. Vol. 100, no 2, 023533- p.
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Physical Sciences
URN: urn:nbn:se:uu:diva-155685DOI: 10.1063/1.2219081ISI: 000239423400058OAI: oai:DiVA.org:uu-155685DiVA: diva2:427575
Available from: 2011-06-28 Created: 2011-06-28 Last updated: 2011-06-28Bibliographically approved

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Ahuja, Rajeev
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