d-wave superconductivity and its coexistence with antiferromagnetism in the t–J–U model : statistically consistent Gutzwiller approach

2013
journal article
article
33
cris.lastimport.wos2024-04-09T22:27:16Z
dc.abstract.enWe discuss the coexistence of antiferromagnetism and d-wave superconductivity within the so-called statistically consistent Gutzwiller approximation (SGA) applied to the t–J–U model. In this approach, the averages calculated in a self-consistent manner coincide with those determined variationally. Such consistency is not guaranteed within the standard renormalized mean-field theory. With the help of SGA, we show that for the typical value $J/\left | t \right |=\frac{1}{3}$, coexistence of antiferromagnetism (AF) and superconductivity (SC) appears only for $U/\left | t \right |> 10.6$ and in a very narrow range of doping $\left ( \delta _{\sim }^{<} 0.006 \right )$ in the vicinity of the Mott insulating state, in contrast to some previous reports. In the coexistent AF+SC phase, a staggered spin-triplet component of the superconducting gap appears also naturally; its value is very small.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorAbram, Marcin - 115219 pl
dc.contributor.authorKaczmarczyk, Jan - 113748 pl
dc.contributor.authorJędrak, Jakubpl
dc.contributor.authorSpałek, Józef - 132018 pl
dc.date.accessioned2015-06-26T09:05:48Z
dc.date.available2015-06-26T09:05:48Z
dc.date.issued2013pl
dc.description.admin[AB] Kaczmarczyk, Jan [SAP13036534] 50000139
dc.description.number9pl
dc.description.publication1pl
dc.description.volume88pl
dc.identifier.articleid094502pl
dc.identifier.doi10.1103/PhysRevB.88.094502pl
dc.identifier.eissn1550-235Xpl
dc.identifier.eissn1538-4489pl
dc.identifier.issn1098-0121pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/10447
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titled-wave superconductivity and its coexistence with antiferromagnetism in the t–J–U model : statistically consistent Gutzwiller approachpl
dc.title.journalPhysical Review. B, Condensed Matter and Materials Physicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T22:27:16Z
dc.abstract.enpl
We discuss the coexistence of antiferromagnetism and d-wave superconductivity within the so-called statistically consistent Gutzwiller approximation (SGA) applied to the t–J–U model. In this approach, the averages calculated in a self-consistent manner coincide with those determined variationally. Such consistency is not guaranteed within the standard renormalized mean-field theory. With the help of SGA, we show that for the typical value $J/\left | t \right |=\frac{1}{3}$, coexistence of antiferromagnetism (AF) and superconductivity (SC) appears only for $U/\left | t \right |> 10.6$ and in a very narrow range of doping $\left ( \delta _{\sim }^{<} 0.006 \right )$ in the vicinity of the Mott insulating state, in contrast to some previous reports. In the coexistent AF+SC phase, a staggered spin-triplet component of the superconducting gap appears also naturally; its value is very small.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Abram, Marcin - 115219
dc.contributor.authorpl
Kaczmarczyk, Jan - 113748
dc.contributor.authorpl
Jędrak, Jakub
dc.contributor.authorpl
Spałek, Józef - 132018
dc.date.accessioned
2015-06-26T09:05:48Z
dc.date.available
2015-06-26T09:05:48Z
dc.date.issuedpl
2013
dc.description.admin
[AB] Kaczmarczyk, Jan [SAP13036534] 50000139
dc.description.numberpl
9
dc.description.publicationpl
1
dc.description.volumepl
88
dc.identifier.articleidpl
094502
dc.identifier.doipl
10.1103/PhysRevB.88.094502
dc.identifier.eissnpl
1550-235X
dc.identifier.eissnpl
1538-4489
dc.identifier.issnpl
1098-0121
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/10447
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subtypepl
Article
dc.titlepl
d-wave superconductivity and its coexistence with antiferromagnetism in the t–J–U model : statistically consistent Gutzwiller approach
dc.title.journalpl
Physical Review. B, Condensed Matter and Materials Physics
dc.typepl
JournalArticle
dspace.entity.type
Publication
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