Source:http://linkedlifedata.com/resource/pubmed/id/20482134
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
17
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| pubmed:dateCreated |
2010-5-20
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| pubmed:abstractText |
We report on the unconventional magnetism in the cubic B-site ordered double perovskite Ba2YMoO6, using ac and dc magnetic susceptibility, heat capacity and muon spin rotation. No magnetic order is observed down to 2 K while the Weiss temperature is approximately -160 K. This is ascribed to the geometric frustration in the lattice of edge-sharing tetrahedra with orbitally degenerate Mo5+ s=1/2 spins. Our experimental results point to a gradual freezing of the spins into a disordered pattern of spin singlets, quenching the orbital degeneracy while leaving the global cubic symmetry unaffected, and providing a rare example of a valence bond glass.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Apr
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| pubmed:issn |
1079-7114
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:day |
30
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| pubmed:volume |
104
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
177202
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| pubmed:year |
2010
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| pubmed:articleTitle |
Valence bond glass on an fcc lattice in the double Perovskite Ba2YMoO6.
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| pubmed:affiliation |
School of Physics and Astronomy, E. C. Stoner Laboratory, University of Leeds, Leeds, LS2 9JT, United Kingdom. m.a.devries@physics.org
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| pubmed:publicationType |
Journal Article
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