Electronic structure in the band-gap region of protonic conductor SrZr 0.90Y0.10O3-δ

Tohru Higuchi; Hiroshige Matsumoto; Tetsuo Shimura; Keiji Yashiro; Tatsuya Kawada; Junichiro Mizusaki; Shik Shin; Takeyo Tsukamoto

doi:10.1143/JJAP.43.5419

Electronic structure in the band-gap region of protonic conductor SrZr _0.90Y_0.10O_3-δ

Tohru Higuchi, Hiroshige Matsumoto, Tetsuo Shimura, Keiji Yashiro, Tatsuya Kawada, Junichiro Mizusaki, Shik Shin, Takeyo Tsukamoto

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

The electronic structure in the band-gap region of protonic conductor SrZr_0.90Y_0.10O_3-δ was studied by soft-X-ray absorption spectroscopy (XAS). The O 1s XAS spectrum of air-annealed SrZr_0.90Y_0.10O_3-δ exhibits three distinct features, namely, the holes on top of the valence band, acceptor-induced level just above the Fermi level and Zr 4d defect-induced level at the bottom of the conduction band, which are lower in the O 1s XAS spectrum of wet-annealed SrZr_0.90Y_0.10O_3-δ. These findings directly indicate that the doped hydrogen compensates the presence of the holes.

Original language	English
Pages (from-to)	5419-5420
Number of pages	2
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	43
Issue number	8 A
DOIs	https://doi.org/10.1143/JJAP.43.5419
Publication status	Published - Aug 1 2004
Externally published	Yes

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All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Cite this

Higuchi, T., Matsumoto, H., Shimura, T., Yashiro, K., Kawada, T., Mizusaki, J., ... Tsukamoto, T. (2004). Electronic structure in the band-gap region of protonic conductor SrZr _0.90Y_0.10O_3-δ. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 43(8 A), 5419-5420. https://doi.org/10.1143/JJAP.43.5419

Electronic structure in the band-gap region of protonic conductor SrZr _0.90Y_0.10O_3-δ. / Higuchi, Tohru; Matsumoto, Hiroshige; Shimura, Tetsuo; Yashiro, Keiji; Kawada, Tatsuya; Mizusaki, Junichiro; Shin, Shik; Tsukamoto, Takeyo.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 43, No. 8 A, 01.08.2004, p. 5419-5420.

Research output: Contribution to journal › Article

Higuchi, Tohru ; Matsumoto, Hiroshige ; Shimura, Tetsuo ; Yashiro, Keiji ; Kawada, Tatsuya ; Mizusaki, Junichiro ; Shin, Shik ; Tsukamoto, Takeyo. / Electronic structure in the band-gap region of protonic conductor SrZr _0.90Y_0.10O_3-δ. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2004 ; Vol. 43, No. 8 A. pp. 5419-5420.

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Access to Document

10.1143/JJAP.43.5419