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dc.contributor.authorAllan, Milan Peter
dc.contributor.authorTamai, Anna
dc.contributor.authorRozbicki, Emil Jerzy
dc.contributor.authorFischer, M. H.
dc.contributor.authorVoss, J.
dc.contributor.authorKing, Phil
dc.contributor.authorMeevasana, Worawat
dc.contributor.authorThirupathaiah, S.
dc.contributor.authorRienks, E.
dc.contributor.authorFink, J.
dc.contributor.authorTennant, David Alan
dc.contributor.authorPerry, Robin Stuart
dc.contributor.authorMercure, Jean-Francois
dc.contributor.authorWang, M. A.
dc.contributor.authorLee, Jinho
dc.contributor.authorFennie, C. J.
dc.contributor.authorKim, E-A
dc.contributor.authorLawler, M. J.
dc.contributor.authorShen, K. M.
dc.contributor.authorMackenzie, Andrew
dc.contributor.authorShen, Z-X
dc.contributor.authorBaumberger, Felix
dc.identifier.citationAllan , M P , Tamai , A , Rozbicki , E J , Fischer , M H , Voss , J , King , P , Meevasana , W , Thirupathaiah , S , Rienks , E , Fink , J , Tennant , D A , Perry , R S , Mercure , J-F , Wang , M A , Lee , J , Fennie , C J , Kim , E-A , Lawler , M J , Shen , K M , Mackenzie , A , Shen , Z-X & Baumberger , F 2013 , ' Formation of heavy d-electron quasiparticles in Sr 3 Ru 2 O 7 ' , New Journal of Physics , vol. 15 , 063029 .
dc.description.abstractThe phase diagram of Sr3Ru2O7 shows hallmarks of strong electron correlations despite the modest Coulomb interaction in the Ru 4d shell. We use angle-resolved photoelectron spectroscopy measurements to provide microscopic insight into the formation of the strongly renormalized heavy d-electron liquid that controls the physics of Sr3Ru2O7. Our data reveal itinerant Ru 4d-states confined over large parts of the Brillouin zone to an energy range of <6 meV, nearly three orders of magnitude lower than the bare band width. We show that this energy scale agrees quantitatively with a characteristic thermodynamic energy scale associated with quantum criticality and illustrate how it arises from a combination of back-folding due to a structural distortion and the hybridization of light and strongly renormalized, heavy quasiparticle bands. The resulting heavy Fermi liquid has a marked k-dependence of the renormalization which we relate to orbital mixing along individual Fermi surface sheets.
dc.relation.ispartofNew Journal of Physicsen
dc.subjectRuthenate SR3RU2O7en
dc.subjectCoulumb interactionen
dc.subjectRu4d shellen
dc.subjectPhotoelectron spectroscopyen
dc.subjectFermi liquiden
dc.titleFormation of heavy d-electron quasiparticles in Sr3Ru2O7en
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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