Source:http://linkedlifedata.com/resource/pubmed/id/11909497
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
12
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| pubmed:dateCreated |
2002-3-22
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| pubmed:abstractText |
We report the first observation of coherent magnetic excitations in a spin ladder system NaV2O5 by using femtosecond time-domain spectroscopy. A pronounced coherent oscillation is observed at 127 cm(-1) (nearly twice the spin gap energy) and assigned to a two-magnon bound state, based on the temperature dependence of the intensity below the charge ordering phase transition at T(C) = 34 K. This mode can be observable only when circularly polarized light is used as a pump or a probe beam, suggesting that it corresponds to a spin-flip excitation from the singlet ground state. A phonon mode strongly coupled to the spin state is also found at 303 cm(-1).
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Mar
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| pubmed:issn |
0031-9007
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
25
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| pubmed:volume |
88
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
127201
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| pubmed:dateRevised |
2003-11-3
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| pubmed:year |
2002
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| pubmed:articleTitle |
Coherent magnetic oscillation in the spin ladder system alpha(')- NaV2O5.
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| pubmed:affiliation |
Institute for Solid State Physics, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8581, Japan.
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| pubmed:publicationType |
Journal Article
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