Spin-correlated electronic state on the surface of a spin-orbit Mott system

Chang Liu, Su Yang Xu, Nasser Alidoust, Tay-Rong Chang, Hsin Lin, Chetan Dhital, Sovit Khadka, Madhab Neupane, Ilya Belopolski, Gabriel Landolt, Horng Tay Jeng, Robert S. Markiewicz, J. Hugo Dil, Arun Bansil, Stephen D. Wilson, M. Zahid Hasan

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number045127
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume90
Issue number4
DOIs
Publication statusPublished - 2014 Jul 22

Fingerprint

Electronic states
Orbits
orbits
Quantum entanglement
electronics
Metal insulator transition
Magnetism
Photoelectron spectroscopy
Coulomb interactions
Fermi level
Oxides
metallicity
Electronic structure
photoelectric emission
insulators
electronic structure
oxides
Electrons
metals
spectroscopy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Liu, Chang ; Xu, Su Yang ; Alidoust, Nasser ; Chang, Tay-Rong ; Lin, Hsin ; Dhital, Chetan ; Khadka, Sovit ; Neupane, Madhab ; Belopolski, Ilya ; Landolt, Gabriel ; Jeng, Horng Tay ; Markiewicz, Robert S. ; Dil, J. Hugo ; Bansil, Arun ; Wilson, Stephen D. ; Hasan, M. Zahid. / Spin-correlated electronic state on the surface of a spin-orbit Mott system. In: Physical Review B - Condensed Matter and Materials Physics. 2014 ; Vol. 90, No. 4.
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abstract = "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.",
author = "Chang Liu and Xu, {Su Yang} and Nasser Alidoust and Tay-Rong Chang and Hsin Lin and Chetan Dhital and Sovit Khadka and Madhab Neupane and Ilya Belopolski and Gabriel Landolt and Jeng, {Horng Tay} and Markiewicz, {Robert S.} and Dil, {J. Hugo} and Arun Bansil and Wilson, {Stephen D.} and Hasan, {M. Zahid}",
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Liu, C, Xu, SY, Alidoust, N, Chang, T-R, Lin, H, Dhital, C, Khadka, S, Neupane, M, Belopolski, I, Landolt, G, Jeng, HT, Markiewicz, RS, Dil, JH, Bansil, A, Wilson, SD & Hasan, MZ 2014, 'Spin-correlated electronic state on the surface of a spin-orbit Mott system', Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 4, 045127. https://doi.org/10.1103/PhysRevB.90.045127

Spin-correlated electronic state on the surface of a spin-orbit Mott system. / Liu, Chang; Xu, Su Yang; Alidoust, Nasser; Chang, Tay-Rong; Lin, Hsin; Dhital, Chetan; Khadka, Sovit; Neupane, Madhab; Belopolski, Ilya; Landolt, Gabriel; Jeng, Horng Tay; Markiewicz, Robert S.; Dil, J. Hugo; Bansil, Arun; Wilson, Stephen D.; Hasan, M. Zahid.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 90, No. 4, 045127, 22.07.2014.

Research output: Contribution to journalArticle

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T1 - Spin-correlated electronic state on the surface of a spin-orbit Mott system

AU - Liu, Chang

AU - Xu, Su Yang

AU - Alidoust, Nasser

AU - Chang, Tay-Rong

AU - Lin, Hsin

AU - Dhital, Chetan

AU - Khadka, Sovit

AU - Neupane, Madhab

AU - Belopolski, Ilya

AU - Landolt, Gabriel

AU - Jeng, Horng Tay

AU - Markiewicz, Robert S.

AU - Dil, J. Hugo

AU - Bansil, Arun

AU - Wilson, Stephen D.

AU - Hasan, M. Zahid

PY - 2014/7/22

Y1 - 2014/7/22

N2 - 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.

AB - 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.

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