Doping-dependent Phase Diagram of LaO{\it M}As ({\it M}=V--Cu) and Electron-type Superconductivity near Ferromagnetic Instability

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dc.creatorXu, Gang
dc.creatorMing, Wenmei
dc.creatorYao, Yugui
dc.creatorDai, Xi
dc.creatorZhang, Shouchen
dc.creatorFang, Zhong
dc.date2008-03-09
dc.date2008-06-04
dc.date.accessioned2026-07-07T09:42:19Z
dc.date.available2026-07-07T09:42:19Z
dc.descriptionBy first-principles calculations, we present a doping-dependent phase diagram of LaO{\it M}As ({\it M}=V--Cu) family. It is characterized as antiferromagnetic semiconductor around LaOMnAs side and ferromagnetic metal around LaOCoAs. Both LaOFeAs and LaONiAs, where superconductivity were discovered, are located at the borderline of magnetic phases. Extensive Fermi surface analysis suggests that the observed superconductivity is of electron-type in its origin. We discuss possible pairing mechanisms in the context of competing ferromagnetic phases found in this work and the ferromagnetic spin fluctuations.
dc.description4 pages, 1 table, 3 figures
dc.identifierhttps://arxiv.org/abs/0803.1282
dc.identifierhttp://arxiv.org/abs/0803.1282
dc.identifierEurophysics Letters, 82, 67002 (2008)
dc.identifierdoi:10.1209/0295-5075/82/67002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162143
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleDoping-dependent Phase Diagram of LaO{\it M}As ({\it M}=V--Cu) and Electron-type Superconductivity near Ferromagnetic Instability
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