Structure and photoemission spectroscopy of strain-controlled metal-insulator transition in NdNiO3 thin films

Ritsuko Eguchi, Y. Okamoto, Z. Hiroi, S. Shin, A. Chainani, Y. Tanaka, M. Matsunami, Y. Takata, Y. Nishino, K. Tamasaku, M. Yabashi, T. Ishikawa

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Abstract

We study epitaxial NdNiO3 thin films on NdGaO3 (001) single-crystal substrates grown using a pulsed-laser deposition method. The films show a clear first-order metal-insulator transition (MIT) at TMI ∼240 K, which is significantly higher than TMI ∼190 K in bulk NdNiO3. The x-ray reciprocal space map shows in-plane tensile and out-of-plane compressive strain, stabilizing the more distorted NdNiO3 thin films with the higher transition temperature. Hard x-ray photoemission shows changes across the MIT and the bandwidth-controlled charge-transfer gap opens due to the reduced p-d hybridization in the low-temperature insulating phase.

Original languageEnglish
Article number056103
JournalJournal of Applied Physics
Volume105
Issue number5
DOIs
Publication statusPublished - 2009
Externally publishedYes

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photoelectric emission
insulators
thin films
metals
spectroscopy
pulsed laser deposition
x rays
transition temperature
charge transfer
bandwidth
single crystals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Structure and photoemission spectroscopy of strain-controlled metal-insulator transition in NdNiO3 thin films. / Eguchi, Ritsuko; Okamoto, Y.; Hiroi, Z.; Shin, S.; Chainani, A.; Tanaka, Y.; Matsunami, M.; Takata, Y.; Nishino, Y.; Tamasaku, K.; Yabashi, M.; Ishikawa, T.

In: Journal of Applied Physics, Vol. 105, No. 5, 056103, 2009.

Research output: Contribution to journalArticle

Eguchi, R, Okamoto, Y, Hiroi, Z, Shin, S, Chainani, A, Tanaka, Y, Matsunami, M, Takata, Y, Nishino, Y, Tamasaku, K, Yabashi, M & Ishikawa, T 2009, 'Structure and photoemission spectroscopy of strain-controlled metal-insulator transition in NdNiO3 thin films', Journal of Applied Physics, vol. 105, no. 5, 056103. https://doi.org/10.1063/1.3086666
Eguchi, Ritsuko ; Okamoto, Y. ; Hiroi, Z. ; Shin, S. ; Chainani, A. ; Tanaka, Y. ; Matsunami, M. ; Takata, Y. ; Nishino, Y. ; Tamasaku, K. ; Yabashi, M. ; Ishikawa, T. / Structure and photoemission spectroscopy of strain-controlled metal-insulator transition in NdNiO3 thin films. In: Journal of Applied Physics. 2009 ; Vol. 105, No. 5.
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AU - Hiroi, Z.

AU - Shin, S.

AU - Chainani, A.

AU - Tanaka, Y.

AU - Matsunami, M.

AU - Takata, Y.

AU - Nishino, Y.

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AU - Ishikawa, T.

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