کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9784044 | 1512028 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Observation of ferroelectric domains in bismuth-layer-structured ferroelectrics using Raman spectroscopy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Raman spectroscopy has been used to investigate the domain structures in bismuth-layered-structured ferroelectrics (BLSFs). In Bi4Ti3O12 single crystal, the lowest frequency mode (soft mode) at â¼30 cmâ1 appears exclusively for the xx polarization configuration (xâ¥polar axis). We found that the polarization dependence of the Raman signal exhibits spatial symmetries that reflect the presence of different domain variants present in Bi4Ti3O12. This highly anisotropic character of the soft mode shares with other BLSFs such as Bi3.25La0.75Ti3O12 and SrBi2Ta2O9, which demonstrate the usefulness of the soft-mode spectroscopy for the study of ferroelectric domain structures in BLSFs. We also applied Raman spectroscopy to in situ observation of domain structures in Bi4Ti3O12 under applied electric field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 120, Issues 1â3, 15 July 2005, Pages 95-99
Journal: Materials Science and Engineering: B - Volume 120, Issues 1â3, 15 July 2005, Pages 95-99
نویسندگان
Minoru Osada, Masaru Tada, Masato Kakihana, Yuji Noguchi, Masaru Miyayama,