Source:http://linkedlifedata.com/resource/pubmed/id/21405594
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
8
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| pubmed:dateCreated |
2011-3-16
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| pubmed:abstractText |
By the first-principles electronic structure calculations, we find that the ground state of the Fe-vacancies ordered TlFe(1.5)Se(2) is a quasi-two-dimensional collinear antiferromagnetic semiconductor with an energy gap of 94 meV, in agreement with experimental measurements. This antiferromagnetic order is driven by the Se-bridged antiferromagnetic superexchange interactions between Fe moments. Similarly, we find that crystals AFe(1.5)Se(2) (A=K, Rb, or Cs) are also antiferromagnetic semiconductors but with a zero-gap semiconducting state or semimetallic state nearly degenerated with the ground states. Thus, rich physical properties and phase diagrams are expected.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Feb
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| pubmed:issn |
1079-7114
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| pubmed:author | |
| pubmed:copyrightInfo |
© 2011 American Physical Society
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| pubmed:issnType |
Electronic
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| pubmed:day |
25
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| pubmed:volume |
106
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
087005
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| pubmed:year |
2011
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| pubmed:articleTitle |
Electronic structures and magnetic order of ordered-Fe-vacancy ternary iron selenides TlFe1.5Se2 and AFe1.5Se2 (A=K, Rb, or Cs).
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| pubmed:affiliation |
Department of Physics, Renmin University of China, Beijing 100872, China.
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| pubmed:publicationType |
Journal Article
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