Markkula, Mikael, Arevalo-Lopez, Angel M., Kusmartseva, Anna ORCID: 0000-0002-3206-424X, Rodgers, Jennifer A., Ritter, Clemens, Wu, Hua ORCID: 0000-0003-1280-202X and Attfield, J. Paul (2011). Incommensurate spin order in the metallic perovskite MnVO3. Phys. Rev. B, 84 (9). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1098-0121

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Abstract

Incommensurate Mn spin order has been discovered in the perovskite MnVO3 containing localized 3d(5) Mn2+ and itinerant 3d(1) V4+ states. This phase has a distorted Pnma crystal structure (a = 5.2741(6) angstrom, b = 7.4100(11) angstrom, and c = 5.1184(8) angstrom at 300 K) and is metallic at temperatures of 2-300 K and at pressures of up to 67 kbar. Neutron scattering reveals a (0.29 0 0) magnetic vector below the 46 K spin ordering transition, and both helical and spin density wave orderings are consistent with the diffraction intensities. Electronic structure calculations show large exchange splittings of the Mn and V 3d bands, and (k(x) 0 0) crossings of the Fermi energy by spin up and down V 3d bands may give rise to Ruderman-Kittel-Kasuya-Yosida coupling of Mn moments, in addition to their superexchange interactions.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Markkula, MikaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Arevalo-Lopez, Angel M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kusmartseva, AnnaUNSPECIFIEDorcid.org/0000-0002-3206-424XUNSPECIFIED
Rodgers, Jennifer A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ritter, ClemensUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wu, HuaUNSPECIFIEDorcid.org/0000-0003-1280-202XUNSPECIFIED
Attfield, J. PaulUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-488802
DOI: 10.1103/PhysRevB.84.094450
Journal or Publication Title: Phys. Rev. B
Volume: 84
Number: 9
Date: 2011
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1098-0121
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
HIGH-PRESSURE; PBVO3Multiple languages
Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed MatterMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48880

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