http://www.cnr.it/ontology/cnr/individuo/prodotto/ID197674
Electronic Correlations Stabilize the Antiferromagnetic Mott State in Cs3C60 (Articolo in rivista)
- Type
- Label
- Electronic Correlations Stabilize the Antiferromagnetic Mott State in Cs3C60 (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevLett.109.166404 (literal)
- Alternative label
Giovannetti, G.; Capone, M. (2012)
Electronic Correlations Stabilize the Antiferromagnetic Mott State in Cs3C60
in Physical review letters; APS, American physical society, College Park, MD (Stati Uniti d'America)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Giovannetti, G.; Capone, M. (literal)
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- http://prl.aps.org/abstract/PRL/v109/i16/e166404 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1CNR-IOM-Democritos National Simulation Centre and International School for Advanced Studies (SISSA), Via Bonomea 265, I-34136, Trieste, Italy
2Institute for Theoretical Solid State Physics, IFW-Dresden, PF 270116, 01171 Dresden, Germany (literal)
- Titolo
- Electronic Correlations Stabilize the Antiferromagnetic Mott State in Cs3C60 (literal)
- Abstract
- Cs3C60 in the A15 structure is an antiferromagnet at ambient pressure in contrast with other superconducting trivalent fullerides. Superconductivity is recovered under pressure and reaches the highest critical temperature of the family. Comparing density-functional calculations with generalized gradient approximation to the hybrid functional of Heyd, Scuseria, and Ernzerhof, which includes a suitable component of exchange, we establish that the antiferromagnetic state of Cs3C60 is not due to a Slater mechanism, and it is stabilized by electron correlation. Pressure reduces the stability of the antiferromagnetic state. Our findings corroborate previous analyses suggesting that the properties of this compound can be understood as the result of the interplay between electron correlations and Jahn-Teller electron-phonon interaction. (literal)
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