Source:http://linkedlifedata.com/resource/pubmed/id/20867806
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
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| pubmed:dateCreated |
2010-9-27
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| pubmed:abstractText |
Neutron scattering is used to investigate spin correlations in ultrapure single crystals of the S=1 triangular lattice NiGa(2)S(4). Despite a Curie-Weiss temperature of ?(CW)=-80(2)??K, static (?>1??ns) short-range (?(ab)=26(3)??Å) incommensurate order prevails for T>1.5??K. The incommensurate modulation Q(0)=(0.155(3),0.155(3),0), ?(CW), and the spin-wave velocity (c=4400??m/s) can be accounted for by antiferromagnetic third-nearest-neighbor interactions J(3)=2.8(6)??meV and ferromagnetic nearest-neighbor coupling J(1)=-0.35(9) J(3). Interplane correlations are limited to nearest neighbors and weakened by an in-plane field. These observations show that the short-range ordered glassy phase that has been observed in a number of highly degenerate systems can persist near the clean limit.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Jul
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| pubmed:issn |
1079-7114
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| pubmed:author | |
| pubmed:issnType |
Electronic
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| pubmed:day |
16
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| pubmed:volume |
105
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
037402
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| pubmed:year |
2010
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| pubmed:articleTitle |
Neutron-scattering measurement of incommensurate short-range order in single crystals of the S=1 triangular antiferromagnet NiGa(2)S(4).
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| pubmed:affiliation |
ISIS Facility, Rutherford Appleton Labs, Chilton, Didcot, OX11 0QX, United Kingdom.
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| pubmed:publicationType |
Journal Article
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