High-Pressure Synthesis and Ferrimagnetism of Ni3TeO6-Type Mn2ScMO6 (M = Nb, Ta)
Document Type
Article
Publication Date
12-2-2019
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 Mn2+ 2Sc3+Nb5+O6 and Mn2+ 2Sc3+Ta5+O6, 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.
Identifier
85075641026 (Scopus)
Publication Title
Inorganic Chemistry
External Full Text Location
https://doi.org/10.1021/acs.inorgchem.9b02468
e-ISSN
1520510X
ISSN
00201669
PubMed ID
31724852
First Page
15953
Last Page
15961
Issue
23
Volume
58
Grant
DMR-1420620
Fund Ref
National Science Foundation
Recommended Citation
Feng, Hai L.; Deng, Zheng; Croft, Mark; Lapidus, Saul H.; Zu, Rui; Gopalan, Venkatraman; Grams, Christoph P.; Hemberger, Joachim; Liu, Sizhan; Tyson, Trevor A.; Frank, Corey E.; Jin, Changqing; Walker, David; and Greenblatt, Martha, "High-Pressure Synthesis and Ferrimagnetism of Ni3TeO6-Type Mn2ScMO6 (M = Nb, Ta)" (2019). Faculty Publications. 7119.
https://digitalcommons.njit.edu/fac_pubs/7119
