Designing ferromagnetism in vanadium-oxide based superlattices

Motivated by recent reports (Phys. Rev. B\textbf{80}, 241102) of room-temperature ferromagnetism in vanadium-oxide based superlattices, a single-site dynamical mean field study of the dependence of the paramagnetic-ferromagnetic phase boundary on superlattice geometry was performed. An examination o...

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Bibliographic Details
Published in:arXiv.org 2013-06
Main Authors: Dang, Hung T, Millis, Andrew J
Format: Article
Language:English
Subjects:
Crystal structure
Dependence
Ferromagnetic phases
Ferromagnetism
Phase diagrams
Superlattices
Vanadium
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Summary:Motivated by recent reports (Phys. Rev. B\textbf{80}, 241102) of room-temperature ferromagnetism in vanadium-oxide based superlattices, a single-site dynamical mean field study of the dependence of the paramagnetic-ferromagnetic phase boundary on superlattice geometry was performed. An examination of variants of the experimentally determined crystal structure indicate that ferromagnetism is found only in a small and probably inaccessible region of the phase diagram. Design criteria for increasing the range over which ferromagnetism might exist are proposed.
ISSN:2331-8422
DOI:10.48550/arxiv.1303.4016