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research article
The Jeff=1/2 insulator Sr
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 the J(eff) = 1/2 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.
Type
research article
Web of Science ID
WOS:000309512200014
Authors
Wojek, B. M.
•
Berntsen, M. H.
•
Boseggia, S.
•
Boothroyd, A. T.
•
Prabhakaran, D.
•
Mcmorrow, D. F.
•
Rønnow, H. M.
•
•
Tjernberg, O.
Publication date
2012
Publisher
Published in
Volume
24
Issue
41
Article Number
415602
Note
MPBHM
Peer reviewed
NON-REVIEWED
EPFL units
Available on Infoscience
November 1, 2012
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