Universität zu Köln

Feng, Hai L., Deng, Zheng, Croft, Mark, Lapidus, Saul H., Zu, Rui ORCID: 0000-0002-9944-4757, Gopalan, Venkatraman, Grams, Christoph P., Hemberger, Joachim, Liu, Sizhan, Tyson, Trevor A., Frank, Corey E., Jin, Changqing, Walker, David and Greenblatt, Martha (2019). High-Pressure Synthesis and Ferrimagnetism of Ni3TeO6-Type Mn2ScMO6 (M = Nb, Ta). Inorg. Chem., 58 (23). S. 15953 - 15962. WASHINGTON: AMER CHEMICAL SOC. ISSN 1520-510X

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Abstract

The corundum-related oxides Mn2ScNbO6 and Mn2ScTaO6 were synthesized at high pressure and high temperature (6 GPa and 1475 K). Analysis of the synchrotron powder X-ray diffraction shows that Mn2ScNbO6 and Mn2ScTaO6 crystallize in Ni3TeO6-type noncentrosymmetric crystal structures with space group R3. The asymmetric crystal structure was confirmed by second harmonic generation measurement. X-ray absorption near-edge spectroscopies indicate formal valence states of Mn(2+)2Sc(3+)4-Nb5+O6 and Mn(2+)2Sc(3+)Ta(5+)O(6), also supported by the calculated bond valence sums. Both samples are electrically insulating. Magnetic measurements indicate that Mn2ScNbO6 and Mn2ScTaO6 order ferrimagnetically at 53 and 50 K, respectively, and Mn2ScTaO6 is found to have a field-induced magnetic transition.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Feng, Hai L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Deng, Zheng UNSPECIFIED UNSPECIFIED UNSPECIFIED Croft, Mark UNSPECIFIED UNSPECIFIED UNSPECIFIED Lapidus, Saul H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zu, Rui UNSPECIFIED orcid.org/0000-0002-9944-4757 UNSPECIFIED Gopalan, Venkatraman UNSPECIFIED UNSPECIFIED UNSPECIFIED Grams, Christoph P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hemberger, Joachim UNSPECIFIED UNSPECIFIED UNSPECIFIED Liu, Sizhan UNSPECIFIED UNSPECIFIED UNSPECIFIED Tyson, Trevor A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Frank, Corey E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jin, Changqing UNSPECIFIED UNSPECIFIED UNSPECIFIED Walker, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenblatt, Martha UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-124878
DOI:	10.1021/acs.inorgchem.9b02468
Journal or Publication Title:	Inorg. Chem.
Volume:	58
Number:	23
Page Range:	S. 15953 - 15962
Date:	2019
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	1520-510X
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 OXYGEN OCTAHEDRAL ROTATIONS; MAGNETIC-PROPERTIES; MULTIFERROIC MATERIAL; CRYSTAL-STRUCTURE; POLAR; SYSTEM; SPIN Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12487