Li, Man-Rong ORCID: 0000-0001-8424-9134, Stephens, Peter W., Retuerto, Maria ORCID: 0000-0001-7564-3500, Sarkar, Tapati, Grams, Christoph P., Hemberger, Joachim, Croft, Mark C., Walker, David and Greenblatt, Martha (2014). Designing Polar and Magnetic Oxides: Zn2FeTaO6 - in Search of Multiferroics. J. Am. Chem. Soc., 136 (24). S. 8508 - 8512. WASHINGTON: AMER CHEMICAL SOC. ISSN 0002-7863
Full text not available from this repository.Abstract
Polar oxides are technically of great interest but difficult to prepare. Our recent discoveries predicted that polar oxides can be synthesized in the corundum-derivative A(2)BB'O-6 family with unusually small cations at the A-site and a d(0) electron configuration ion at B'-site. When magnetic transition-metal ions are incorporated more interesting polar magnetic oxides can form. In this work we experimentally verified this prediction and prepared LiNbO3 (LN)-type polar magnetic Zn2FeTaO6 via high pressure and temperature synthesis. The crystal structure analysis indicates highly distorted ZnO6 and (Fe/Ta)O-6 octahedra, and an estimated spontaneous polarization (P-S) of similar to 50 mu C/cm(2) along the c-axis was obtained from point charge model calculations. Zn2Fe3+Ta5+O6 has a lower magnetic transition temperature (T-N similar to 22 K) than the Mn2FeTaO6 analogue but is less conductive. The dielectric and polarization measurements indicate a potentially switchable component.
Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-435716 | ||||||||||||||||||||||||||||||||||||||||
DOI: | 10.1021/ja502774v | ||||||||||||||||||||||||||||||||||||||||
Journal or Publication Title: | J. Am. Chem. Soc. | ||||||||||||||||||||||||||||||||||||||||
Volume: | 136 | ||||||||||||||||||||||||||||||||||||||||
Number: | 24 | ||||||||||||||||||||||||||||||||||||||||
Page Range: | S. 8508 - 8512 | ||||||||||||||||||||||||||||||||||||||||
Date: | 2014 | ||||||||||||||||||||||||||||||||||||||||
Publisher: | AMER CHEMICAL SOC | ||||||||||||||||||||||||||||||||||||||||
Place of Publication: | WASHINGTON | ||||||||||||||||||||||||||||||||||||||||
ISSN: | 0002-7863 | ||||||||||||||||||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||||||||||||||||||
Faculty: | Faculty of Mathematics and Natural Sciences | ||||||||||||||||||||||||||||||||||||||||
Divisions: | Faculty of Mathematics and Natural Sciences > Department of Physics > Institute of Physics II | ||||||||||||||||||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||||||||||||||||||
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Refereed: | Yes | ||||||||||||||||||||||||||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/43571 |
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