Polaronic behavior of photoelectron spectra of Fe3O4 revealed by both hard X-ray and extremely low energy photons

Masato Kimura; Hidenori Fujiwara; Akira Sekiyama; Junichi Yamaguchi; Kazumasa Kishimoto; Hiroshi Sugiyama; Gen Funabashi; Shin Imada; Satoshi Iguchi; Yoshinori Tokura; Atsushi Higashiya; Makina Yabashi; Kenji Tamasaku; Tetsuya Ishikawa; Takahiro Ito; Shin Ichi Kimura; Shigemasa Suga

doi:10.1143/JPSJ.79.064710

Polaronic behavior of photoelectron spectra of Fe₃O₄ revealed by both hard X-ray and extremely low energy photons

Masato Kimura, Hidenori Fujiwara, Akira Sekiyama, Junichi Yamaguchi, Kazumasa Kishimoto, Hiroshi Sugiyama, Gen Funabashi, Shin Imada, Satoshi Iguchi, Yoshinori Tokura, Atsushi Higashiya, Makina Yabashi, Kenji Tamasaku, Tetsuya Ishikawa, Takahiro Ito, Shin Ichi Kimura, Shigemasa Suga

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100-330K for Fe ₃O₄. In the high temperature phase just above the Verwey transition, the intensity at the Fermi level (EF) is still very weak, but it increases gradually with further increasing the temperature (250 K, 330 K) in consistence with the temperature dependence of the conductivity. The spectral behaviors near E_F with temperature are well explained by the polaronic model, which shows the change from small polaron to large polaron.

Original language	English
Article number	064710
Journal	journal of the physical society of japan
Volume	79
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.79.064710
Publication status	Published - 2010 Jun
Externally published	Yes

Keywords

Magnetite
Photoelectron spectroscopy
Polaron
Strongly correlated electron system
Verwey transition

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.79.064710

Cite this

Kimura, M., Fujiwara, H., Sekiyama, A., Yamaguchi, J., Kishimoto, K., Sugiyama, H., Funabashi, G., Imada, S., Iguchi, S., Tokura, Y., Higashiya, A., Yabashi, M., Tamasaku, K., Ishikawa, T., Ito, T., Kimura, S. I., & Suga, S. (2010). Polaronic behavior of photoelectron spectra of Fe₃O₄ revealed by both hard X-ray and extremely low energy photons. journal of the physical society of japan, 79(6), [064710]. https://doi.org/10.1143/JPSJ.79.064710

Kimura, M, Fujiwara, H, Sekiyama, A, Yamaguchi, J, Kishimoto, K, Sugiyama, H, Funabashi, G, Imada, S, Iguchi, S, Tokura, Y, Higashiya, A, Yabashi, M, Tamasaku, K, Ishikawa, T, Ito, T, Kimura, SI & Suga, S 2010, 'Polaronic behavior of photoelectron spectra of Fe₃O₄ revealed by both hard X-ray and extremely low energy photons', journal of the physical society of japan, vol. 79, no. 6, 064710. https://doi.org/10.1143/JPSJ.79.064710

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title = "Polaronic behavior of photoelectron spectra of Fe3O4 revealed by both hard X-ray and extremely low energy photons",

abstract = "Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100-330K for Fe 3O4. In the high temperature phase just above the Verwey transition, the intensity at the Fermi level (EF) is still very weak, but it increases gradually with further increasing the temperature (250 K, 330 K) in consistence with the temperature dependence of the conductivity. The spectral behaviors near EF with temperature are well explained by the polaronic model, which shows the change from small polaron to large polaron.",

keywords = "Magnetite, Photoelectron spectroscopy, Polaron, Strongly correlated electron system, Verwey transition",

author = "Masato Kimura and Hidenori Fujiwara and Akira Sekiyama and Junichi Yamaguchi and Kazumasa Kishimoto and Hiroshi Sugiyama and Gen Funabashi and Shin Imada and Satoshi Iguchi and Yoshinori Tokura and Atsushi Higashiya and Makina Yabashi and Kenji Tamasaku and Tetsuya Ishikawa and Takahiro Ito and Kimura, {Shin Ichi} and Shigemasa Suga",

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doi = "10.1143/JPSJ.79.064710",

language = "English",

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T1 - Polaronic behavior of photoelectron spectra of Fe3O4 revealed by both hard X-ray and extremely low energy photons

AU - Kimura, Masato

AU - Fujiwara, Hidenori

AU - Sekiyama, Akira

AU - Yamaguchi, Junichi

AU - Kishimoto, Kazumasa

AU - Sugiyama, Hiroshi

AU - Funabashi, Gen

AU - Imada, Shin

AU - Iguchi, Satoshi

AU - Tokura, Yoshinori

AU - Higashiya, Atsushi

AU - Yabashi, Makina

AU - Tamasaku, Kenji

AU - Ishikawa, Tetsuya

AU - Ito, Takahiro

AU - Kimura, Shin Ichi

AU - Suga, Shigemasa

PY - 2010/6

Y1 - 2010/6

N2 - Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100-330K for Fe 3O4. In the high temperature phase just above the Verwey transition, the intensity at the Fermi level (EF) is still very weak, but it increases gradually with further increasing the temperature (250 K, 330 K) in consistence with the temperature dependence of the conductivity. The spectral behaviors near EF with temperature are well explained by the polaronic model, which shows the change from small polaron to large polaron.

AB - Hard X-ray and extremely low energy bulk-sensitive photoelectron spectroscopy has been performed in the temperature range of 100-330K for Fe 3O4. In the high temperature phase just above the Verwey transition, the intensity at the Fermi level (EF) is still very weak, but it increases gradually with further increasing the temperature (250 K, 330 K) in consistence with the temperature dependence of the conductivity. The spectral behaviors near EF with temperature are well explained by the polaronic model, which shows the change from small polaron to large polaron.

KW - Magnetite

KW - Photoelectron spectroscopy

KW - Polaron

KW - Strongly correlated electron system

KW - Verwey transition

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