Evolving spin periodicity and lock-in transition in the frustrated ordered ilmenite-type β-Mn 2 InSbO 6

Evolving spin periodicity and lock-in transition in the frustrated ordered ilmenite-type β-Mn 2 InSbO 6

Polar magnets are promising materials for new applications as multiferroics or in spintronics. In double corundum-related oxides, the cation ordering imposes a polar structure and the use of high pressure facilitates the insertion of magnetic cations into the compounds. Here we present the high-pres...

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Bibliographic Details
Published in:Physical review. B, Condensed matter and materials physics Vol. 98; no. 21
Main Authors: Arévalo-López, Ángel M, Solana-Madruga, Elena, Arévalo-López, Eugenia P, Khalyavin, Dmitry, Kepa, Michal, dos Santos-García, Antonio J, Sáez-Puche, Regino, Attfield, J. Paul
Format: Journal Article
Language:English
Published: American Physical Society 01-12-2018
Subjects:
Condensed Matter
Materials Science
Physics
Online Access:Get full text
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Summary:Polar magnets are promising materials for new applications as multiferroics or in spintronics. In double corundum-related oxides, the cation ordering imposes a polar structure and the use of high pressure facilitates the insertion of magnetic cations into the compounds. Here we present the high-pressure synthesis of a new polar and ferrimagnetic corundum derivative Mn 2 InSbO 6 , which adopts the ordered-ilmenite-type structure. Neutron powder diffraction reveals that the high-temperature nearly collinear ferrimagnetic phase evolves to an incommensurate helical structure with k δ = [0 0 k z ] propagation vector, which then locks to the commensurate value of k z = 1/8. This complex magnetic behavior is likely to be related to magnetic frustration and the polar nature of the ordered double corundum structure.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.98.214403