Source:http://linkedlifedata.com/resource/pubmed/id/12443443
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:dateCreated |
2002-11-21
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| pubmed:abstractText |
Based on a model Hamiltonian with competing antiferromagnetic (AF) and d-wave superconductivity interactions, the vortex charge is investigated by solving the Bogoliubov-de Gennes equations. We found that the vortex charge is negative when a sufficient strength of AF order is induced inside the vortex core; otherwise, it is positive. By tuning the on-site Coulomb repulsion U or the doping parameter delta, a transition between the positive and negative vortex charges may occur. The vortex charge at optimal doping has also been studied as a function of magnetic field. Recent NMR and Hall effect experiments may be understood in terms of the present results.
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| pubmed:language |
eng
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| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:author | |
| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
217001
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| pubmed:dateRevised |
2003-11-4
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| pubmed:articleTitle |
Vortex charges in high-temperature superconductors.
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| pubmed:affiliation |
Texas Center for Superconductivity and Department of Physics, University of Houston, Houston, Texas 77204, USA.
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