title: The Jeff = 1/2 insulator Sr3Ir2O7 studied by means of angle-resolved photoemission spectroscopy.
abstract: The low-energy electronic structure of the J(eff) = 1/2 spin-orbit insulator Sr3Ir2O7 has been studied by means of angle-resolved photoemission spectroscopy. A comparison of the results for bilayer Sr3Ir2O7 with available literature data for the related single-layer compound Sr2IrO4 reveals qualitative similarities and similar J(eff) = 1/2 bandwidths for the two materials, but also pronounced differences in the distribution of the spectral weight. In particular, photoemission from J(eff) = 1/2 the states appears to be suppressed. Yet, it is found that the Sr3Ir2O7 data are in overall better agreement with band-structure calculations than the data for Sr2IrO4.
authors.affiliation: KTH Royal Institute of Technology, ICT Materials Physics, Kista, Sweden. basti@kth.se
authors.forename: B M
authors.initials: BM
authors.lastname: Wojek
authors.forename: M H
authors.initials: MH
authors.lastname: Berntsen
authors.forename: S
authors.initials: S
authors.lastname: Boseggia
authors.forename: A T
authors.initials: AT
authors.lastname: Boothroyd
authors.forename: D
authors.initials: D
authors.lastname: Prabhakaran
authors.forename: D F
authors.initials: DF
authors.lastname: McMorrow
authors.forename: H M
authors.initials: HM
authors.lastname: Rønnow
authors.forename: J
authors.initials: J
authors.lastname: Chang
authors.forename: O
authors.initials: O
authors.lastname: Tjernberg