Universität zu Köln

Li, Man-Rong ORCID: 0000-0001-8424-9134, Retuerto, Maria ORCID: 0000-0001-7564-3500, Walker, David, Sarkar, Tapati, Stephens, Peter W., Mukherjee, Swarnakamal, Dasgupta, Tanusri Saha, Hodges, Jason P., Croft, Mark, Grams, Christoph P., Hemberger, Joachim, Sanchez-Benitez, Javier ORCID: 0000-0002-3108-6594, Huq, Ashfia ORCID: 0000-0002-8445-9649, Saouma, Felix O. ORCID: 0000-0002-9413-1866, Jang, Joon I. and Greenblatt, Martha (2014). Magnetic-Structure-Stabilized Polarization in an Above-Room-Temperature Ferrimagnet. Angew. Chem.-Int. Edit., 53 (40). S. 10774 - 10779. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3773

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Abstract

Above-room-temperature polar magnets are of interest due to their practical applications in spintronics. Here we present a strategy to design high-temperature polar magnetic oxides in the corundum-derived A(2)BB'O-6 family, exemplified by the non-centrosymmetric (R3) Ni3TeO6-type Mn2+ Fe-2(3+) Mo5+ O-6, which shows strong ferrimagnetic ordering with T-C= 337 K and demonstrates structural polarization without any ions with (n - 1) d(10)ns(0), d(0), or stereoactive lone-pair electrons. Density functional theory calculations confirm the experimental results and suggest that the energy of the magnetically ordered structure, based on the Ni3TeO6 prototype, is significantly lower than that of any related structure, and accounts for the spontaneous polarization (68 mu Ccm(-2)) and non-centrosymmetry confirmed directly by second harmonic generation. These results motivate new directions in the search for practical magnetoelectric/multiferroic materials.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Li, Man-Rong UNSPECIFIED orcid.org/0000-0001-8424-9134 UNSPECIFIED Retuerto, Maria UNSPECIFIED orcid.org/0000-0001-7564-3500 UNSPECIFIED Walker, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Sarkar, Tapati UNSPECIFIED UNSPECIFIED UNSPECIFIED Stephens, Peter W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mukherjee, Swarnakamal UNSPECIFIED UNSPECIFIED UNSPECIFIED Dasgupta, Tanusri Saha UNSPECIFIED UNSPECIFIED UNSPECIFIED Hodges, Jason P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Croft, Mark UNSPECIFIED UNSPECIFIED UNSPECIFIED Grams, Christoph P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hemberger, Joachim UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanchez-Benitez, Javier UNSPECIFIED orcid.org/0000-0002-3108-6594 UNSPECIFIED Huq, Ashfia UNSPECIFIED orcid.org/0000-0002-8445-9649 UNSPECIFIED Saouma, Felix O. UNSPECIFIED orcid.org/0000-0002-9413-1866 UNSPECIFIED Jang, Joon I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenblatt, Martha UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-428420
DOI:	10.1002/anie.201406180
Journal or Publication Title:	Angew. Chem.-Int. Edit.
Volume:	53
Number:	40
Page Range:	S. 10774 - 10779
Date:	2014
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1521-3773
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
Uncontrolled Keywords:	Keywords Language THIN-FILM HETEROSTRUCTURES; LINBO3-TYPE STRUCTURE; FERROELECTRICITY; OXIDES; POLAR; MULTIFERROICS; PEROVSKITES; ORIGIN; ZNSNO3; FIELD Multiple languages Chemistry, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/42842