Source:http://linkedlifedata.com/resource/pubmed/id/20867785
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions |
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umls-concept:C1882348
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| pubmed:issue |
3
|
| pubmed:dateCreated |
2010-9-27
|
| pubmed:abstractText |
We consider quantum critical points in which quantum fluctuations associated with charge rather than magnetic order induce unconventional metallic properties. Based on finite-T calculations on a two-dimensional extended Hubbard model, we show how the coherence scale T(*) characteristic of Fermi liquid behavior of the homogeneous metal vanishes at the onset of charge order. A strong effective mass enhancement reminiscent of heavy fermion behavior indicates the possible destruction of quasiparticles at the quantum critical points. Experimental probes on quarter-filled layered organic materials are proposed for unveiling the behavior of electrons across the quantum critical region.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Jul
|
| pubmed:issn |
1079-7114
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| pubmed:author | |
| pubmed:issnType |
Electronic
|
| pubmed:day |
16
|
| pubmed:volume |
105
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
036405
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| pubmed:year |
2010
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| pubmed:articleTitle |
Quantum critical behavior of electrons at the edge of charge order.
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| pubmed:affiliation |
Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Madrid 28049, Spain.
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| pubmed:publicationType |
Journal Article
|