Raman spectroscopic fingerprint of ferroelectric SrBi2Ta2O9 thin films: A rapid distinction method for fluorite and pyrochlore phases

Minoru Osada; Masato Kakihana; Masatoshi Mitsuya; Takayuki Watanabe; Hiroshi Funakubo

Raman spectroscopic fingerprint of ferroelectric SrBi₂Ta₂O₉ thin films: A rapid distinction method for fluorite and pyrochlore phases

Minoru Osada, Masato Kakihana, Masatoshi Mitsuya, Takayuki Watanabe, Hiroshi Funakubo

研究成果: Article › 査読

抄録

We present the use of Raman spectroscopy as a rapid and sensitive means for the phase characterization of ferroelectric SrBi₂(Ta_1-xNb_x)₂O₉ (SBTN) thin films. It is shown that frequency shifts, together with Raman selection rules, are characteristic of layered perovskite, fluorite and pyrochlore structures, and thus the Raman spectra can be used as a fingerprint of the symmetry of the examined film. We also find the enormous potential of Raman spectroscopy to detect and quantify fractions of the fluorite and pyrochlore phases coexistent with the SBTN phase.

本文言語	English
ページ（範囲）	L891-L893
ジャーナル	Japanese Journal of Applied Physics, Part 2: Letters
巻	40
号	8 B
出版ステータス	Published - 2001 8 15
外部発表	はい

ASJC Scopus subject areas

工学（全般）
物理学および天文学（その他）
物理学および天文学（全般）

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引用スタイル

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abstract = "We present the use of Raman spectroscopy as a rapid and sensitive means for the phase characterization of ferroelectric SrBi2(Ta1-xNbx)2O9 (SBTN) thin films. It is shown that frequency shifts, together with Raman selection rules, are characteristic of layered perovskite, fluorite and pyrochlore structures, and thus the Raman spectra can be used as a fingerprint of the symmetry of the examined film. We also find the enormous potential of Raman spectroscopy to detect and quantify fractions of the fluorite and pyrochlore phases coexistent with the SBTN phase.",

keywords = "Fluorite, Impurity phase, Phase identification, Pyrochlore, Raman scattering, SrBi(TaNb)O (SBTN)",

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year = "2001",

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T1 - Raman spectroscopic fingerprint of ferroelectric SrBi2Ta2O9 thin films

T2 - A rapid distinction method for fluorite and pyrochlore phases

AU - Osada, Minoru

AU - Kakihana, Masato

AU - Mitsuya, Masatoshi

AU - Watanabe, Takayuki

AU - Funakubo, Hiroshi

PY - 2001/8/15

Y1 - 2001/8/15

N2 - We present the use of Raman spectroscopy as a rapid and sensitive means for the phase characterization of ferroelectric SrBi2(Ta1-xNbx)2O9 (SBTN) thin films. It is shown that frequency shifts, together with Raman selection rules, are characteristic of layered perovskite, fluorite and pyrochlore structures, and thus the Raman spectra can be used as a fingerprint of the symmetry of the examined film. We also find the enormous potential of Raman spectroscopy to detect and quantify fractions of the fluorite and pyrochlore phases coexistent with the SBTN phase.

AB - We present the use of Raman spectroscopy as a rapid and sensitive means for the phase characterization of ferroelectric SrBi2(Ta1-xNbx)2O9 (SBTN) thin films. It is shown that frequency shifts, together with Raman selection rules, are characteristic of layered perovskite, fluorite and pyrochlore structures, and thus the Raman spectra can be used as a fingerprint of the symmetry of the examined film. We also find the enormous potential of Raman spectroscopy to detect and quantify fractions of the fluorite and pyrochlore phases coexistent with the SBTN phase.

KW - Fluorite

KW - Impurity phase

KW - Phase identification

KW - Pyrochlore

KW - Raman scattering

KW - SrBi(TaNb)O (SBTN)

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