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research article
Spin-correlated electronic state on the surface of a spin-orbit Mott system
2014
We use angle-resolved photoemission spectroscopy to show that the near-surface electronic structure of a bulk insulating iridate Sr3Ir2O7 lying near a metal-Mott insulator transition exhibits weak metallicity signified by finite electronic spectral weight at the Fermi level. The surface electrons exhibit a spin structure resulting from an interplay of spin-orbit, Coulomb interaction and surface quantum magnetism. Our results shed light on understanding the exotic quantum entanglement and transport phenomena in iridate-based oxide devices.
Type
research article
Web of Science ID
WOS:000339482200005
Authors
Liu, Chang
•
Xu, Su-Yang
•
Alidoust, Nasser
•
Chang, Tay-Rong
•
Lin, Hsin
•
Dhital, Chetan
•
Khadka, Sovit
•
Neupane, Madhab
•
Belopolski, Ilya
•
Landolt, Gabriel
Publication date
2014
Published in
Volume
90
Issue
4
Article Number
045127
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
June 23, 2015
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