Broken symmetry in low-temperature BaTiO 3 phases: Strain effects probed by Raman scattering

Minoru Osada, Masato Kakihana, Satoshi Wada, Tatsuo Noma, Woo Seok Cho

研究成果: Article査読

49 被引用数 (Scopus)

抄録

Micro-Raman spectroscopy is utilized to study the temperature dependence of domain structures in a high-quality BaTiO 3 bulk crystal. For T=4-100 K, the spectra of the initially 90° domain wall region at room temperature exhibit the splitting of A 1 mode at ~244 cm -1 with the appearance of an additional peak at ~263 cm -1 , the behavior of which is different from that of a sharp peak observed at ~244 cm -1 in the single-domain region. The results imply that the strain fields exist in the domain walls at low temperatures, thus altering the local crystal symmetry.

本文言語English
ページ(範囲)3393-3395
ページ数3
ジャーナルApplied Physics Letters
75
21
DOI
出版ステータスPublished - 1999 11 22
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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