The electronic structure of the high-symmetry perovskite iridate Ba

S. Moser, L. Moreschini, A. Ebrahimi, B. Dalla Piazza, M. Isobe, H. Okabe, J. Akimitsu, V. V. Mazurenko, K. S. Kim, A. Bostwick, E. Rotenberg, J. Chang, H. M. Rønnow, M. Grioni

Research output: Contribution to journalArticle

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Abstract

We report angle-resolved photoemission (ARPES) measurements,density functional and model tight-binding calculations on (Ba-214),an antiferromagnetic insulator.Ba-214 does not exhibit the rotational distortion of the Iroctahedra that is present in its sister compound (Sr-214),and is therefore an attractive reference material to study the electronic structure of layered iridates.We find that the band structures of Ba-214 and Sr-214 are qualitatively similar, hinting at the predominant role of the spin-orbit interaction in these materials.Temperature-dependent ARPES data show that the energy gap persists well above TN, and favor a Mott over a Slater scenario for this compound.

Original languageEnglish
Article number013008
JournalNew Journal of Physics
Volume16
DOIs
Publication statusPublished - 2014 Jan 1

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photoelectric emission
electronic structure
symmetry
spin-orbit interactions
insulators
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Moser, S., Moreschini, L., Ebrahimi, A., Dalla Piazza, B., Isobe, M., Okabe, H., ... Grioni, M. (2014). The electronic structure of the high-symmetry perovskite iridate Ba. New Journal of Physics, 16, [013008]. https://doi.org/10.1088/1367-2630/16/1/013008
Moser, S. ; Moreschini, L. ; Ebrahimi, A. ; Dalla Piazza, B. ; Isobe, M. ; Okabe, H. ; Akimitsu, J. ; Mazurenko, V. V. ; Kim, K. S. ; Bostwick, A. ; Rotenberg, E. ; Chang, J. ; Rønnow, H. M. ; Grioni, M. / The electronic structure of the high-symmetry perovskite iridate Ba. In: New Journal of Physics. 2014 ; Vol. 16.
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abstract = "We report angle-resolved photoemission (ARPES) measurements,density functional and model tight-binding calculations on (Ba-214),an antiferromagnetic insulator.Ba-214 does not exhibit the rotational distortion of the Iroctahedra that is present in its sister compound (Sr-214),and is therefore an attractive reference material to study the electronic structure of layered iridates.We find that the band structures of Ba-214 and Sr-214 are qualitatively similar, hinting at the predominant role of the spin-orbit interaction in these materials.Temperature-dependent ARPES data show that the energy gap persists well above TN, and favor a Mott over a Slater scenario for this compound.",
author = "S. Moser and L. Moreschini and A. Ebrahimi and {Dalla Piazza}, B. and M. Isobe and H. Okabe and J. Akimitsu and Mazurenko, {V. V.} and Kim, {K. S.} and A. Bostwick and E. Rotenberg and J. Chang and R{\o}nnow, {H. M.} and M. Grioni",
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Moser, S, Moreschini, L, Ebrahimi, A, Dalla Piazza, B, Isobe, M, Okabe, H, Akimitsu, J, Mazurenko, VV, Kim, KS, Bostwick, A, Rotenberg, E, Chang, J, Rønnow, HM & Grioni, M 2014, 'The electronic structure of the high-symmetry perovskite iridate Ba', New Journal of Physics, vol. 16, 013008. https://doi.org/10.1088/1367-2630/16/1/013008

The electronic structure of the high-symmetry perovskite iridate Ba. / Moser, S.; Moreschini, L.; Ebrahimi, A.; Dalla Piazza, B.; Isobe, M.; Okabe, H.; Akimitsu, J.; Mazurenko, V. V.; Kim, K. S.; Bostwick, A.; Rotenberg, E.; Chang, J.; Rønnow, H. M.; Grioni, M.

In: New Journal of Physics, Vol. 16, 013008, 01.01.2014.

Research output: Contribution to journalArticle

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T1 - The electronic structure of the high-symmetry perovskite iridate Ba

AU - Moser, S.

AU - Moreschini, L.

AU - Ebrahimi, A.

AU - Dalla Piazza, B.

AU - Isobe, M.

AU - Okabe, H.

AU - Akimitsu, J.

AU - Mazurenko, V. V.

AU - Kim, K. S.

AU - Bostwick, A.

AU - Rotenberg, E.

AU - Chang, J.

AU - Rønnow, H. M.

AU - Grioni, M.

PY - 2014/1/1

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AB - We report angle-resolved photoemission (ARPES) measurements,density functional and model tight-binding calculations on (Ba-214),an antiferromagnetic insulator.Ba-214 does not exhibit the rotational distortion of the Iroctahedra that is present in its sister compound (Sr-214),and is therefore an attractive reference material to study the electronic structure of layered iridates.We find that the band structures of Ba-214 and Sr-214 are qualitatively similar, hinting at the predominant role of the spin-orbit interaction in these materials.Temperature-dependent ARPES data show that the energy gap persists well above TN, and favor a Mott over a Slater scenario for this compound.

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Moser S, Moreschini L, Ebrahimi A, Dalla Piazza B, Isobe M, Okabe H et al. The electronic structure of the high-symmetry perovskite iridate Ba. New Journal of Physics. 2014 Jan 1;16. 013008. https://doi.org/10.1088/1367-2630/16/1/013008