Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates

We report on an angle resolved photoemission (ARPES) study of bulk electron-doped perovskite iridate, (Sr(1−x)La(x))(3)Ir(2)O(7). Fermi surface pockets are observed with a total electron count in keeping with that expected from La substitution. Depending on the energy and polarization of the inciden...

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Autores principales: He, Junfeng, Hafiz, H., Mion, Thomas R., Hogan, T., Dhital, C., Chen, X., Lin, Qisen, Hashimoto, M., Lu, D. H., Zhang, Y., Markiewicz, R. S., Bansil, A., Wilson, S. D., He, Rui-Hua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4336940/
https://www.ncbi.nlm.nih.gov/pubmed/25704850
http://dx.doi.org/10.1038/srep08533
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author He, Junfeng
Hafiz, H.
Mion, Thomas R.
Hogan, T.
Dhital, C.
Chen, X.
Lin, Qisen
Hashimoto, M.
Lu, D. H.
Zhang, Y.
Markiewicz, R. S.
Bansil, A.
Wilson, S. D.
He, Rui-Hua
author_facet He, Junfeng
Hafiz, H.
Mion, Thomas R.
Hogan, T.
Dhital, C.
Chen, X.
Lin, Qisen
Hashimoto, M.
Lu, D. H.
Zhang, Y.
Markiewicz, R. S.
Bansil, A.
Wilson, S. D.
He, Rui-Hua
author_sort He, Junfeng
collection PubMed
description We report on an angle resolved photoemission (ARPES) study of bulk electron-doped perovskite iridate, (Sr(1−x)La(x))(3)Ir(2)O(7). Fermi surface pockets are observed with a total electron count in keeping with that expected from La substitution. Depending on the energy and polarization of the incident photons, these pockets show up in the form of disconnected “Fermi arcs”, reminiscent of those reported recently in surface electron-doped Sr(2)IrO(4). Our observed spectral variation is consistent with the coexistence of an electronic supermodulation with structural distortion in the system.
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spelling pubmed-43369402015-03-02 Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates He, Junfeng Hafiz, H. Mion, Thomas R. Hogan, T. Dhital, C. Chen, X. Lin, Qisen Hashimoto, M. Lu, D. H. Zhang, Y. Markiewicz, R. S. Bansil, A. Wilson, S. D. He, Rui-Hua Sci Rep Article We report on an angle resolved photoemission (ARPES) study of bulk electron-doped perovskite iridate, (Sr(1−x)La(x))(3)Ir(2)O(7). Fermi surface pockets are observed with a total electron count in keeping with that expected from La substitution. Depending on the energy and polarization of the incident photons, these pockets show up in the form of disconnected “Fermi arcs”, reminiscent of those reported recently in surface electron-doped Sr(2)IrO(4). Our observed spectral variation is consistent with the coexistence of an electronic supermodulation with structural distortion in the system. Nature Publishing Group 2015-02-23 /pmc/articles/PMC4336940/ /pubmed/25704850 http://dx.doi.org/10.1038/srep08533 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
He, Junfeng
Hafiz, H.
Mion, Thomas R.
Hogan, T.
Dhital, C.
Chen, X.
Lin, Qisen
Hashimoto, M.
Lu, D. H.
Zhang, Y.
Markiewicz, R. S.
Bansil, A.
Wilson, S. D.
He, Rui-Hua
Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title_full Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title_fullStr Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title_full_unstemmed Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title_short Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
title_sort fermi arcs vs. fermi pockets in electron-doped perovskite iridates
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4336940/
https://www.ncbi.nlm.nih.gov/pubmed/25704850
http://dx.doi.org/10.1038/srep08533
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