Theoretical Study on Coexistence of Ferromagnetism and Superconductivity

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dc.creatorKaneyasu, Hirono
dc.creatorYamada, Kosaku
dc.date2006-03-03
dc.date.accessioned2026-07-07T07:02:05Z
dc.date.available2026-07-07T07:02:05Z
dc.descriptionOn the basis of a two-dimensional t-t' Hubbard model in ferromagnetic and paramagnetic states, the triplet superconducting mechanism is investigated by the third-order perturbation theory with respect to the on-site Coulomb interaction U. In general, the superconducting state is more stable in the paramagnetic state than in the ferromagnetic state. As a special case, the dominant ferromagnetic superconductivity is obtained by the electron-electron correlation between the electronlike majority and holelike minority bands. Furthermore, it is pointed out that in some cases the two bands play an essential role for the coexistence of superconductivity and ferromagnetism.
dc.description5 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0603066
dc.identifierhttp://arxiv.org/abs/cond-mat/0603066
dc.identifierJ. Phys. Soc. Jpn. 74 (2005) 527
dc.identifierdoi:10.1143/JPSJ.74.527
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/108484
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleTheoretical Study on Coexistence of Ferromagnetism and Superconductivity
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