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High-temperature structural phase transition in the LiCu2O2 multiferroic
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2013 (English)In: Journal of Experimental and Theoretical Physics, ISSN 1063-7761, E-ISSN 1090-6509, Vol. 117, no 2, 320-326 p.Article in journal (Refereed) Published
Abstract [en]

The results of thermogravimetric, X-ray diffraction, and electrical studies of LiCu2O2 single crystals in the temperature range 300-1100 K are presented. A reversible first-order phase transition between the orthorhombic and tetragonal phases is found to occur in these single crystals at T = 993 K. A pronounced peak on a differential thermal analysis curve and jumps in the unit cell parameters and the electrical resistivity are detected at the phase-transition temperature. The data on the crystal structure of LiCu2O2 and the phase transition-induced change in the entropy determined in this work are used to conclude that the revealed phase transition is caused by the ordering-disordering of Li+ and Cu2+ cations in their structural positions.

Place, publisher, year, edition, pages
2013. Vol. 117, no 2, 320-326 p.
National Category
Natural Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
URN: urn:nbn:se:uu:diva-209490DOI: 10.1134/S1063776113100026ISI: 000324558800013OAI: oai:DiVA.org:uu-209490DiVA: diva2:658228
Available from: 2013-10-21 Created: 2013-10-21 Last updated: 2014-01-31Bibliographically approved

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Ivanov, Sergey A.Ottoson, MikaelMathieu, RolandNordblad, Per
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Solid State PhysicsInorganic Chemistry
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