FERROELECTRIC DOMAIN-STRUCTURE AND INTERNAL BIAS FIELD IN DL-ALPHA-ALANINE-DOPED TRIGLYCINE SULFATE

被引：12
|
作者：
NAKATANI, N
机构：
[1] Department of Electronics and Computer Science, Toyama University, Toyama
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1991年 / 30卷 / 12A期
关键词：
FERROELECTRICS; TRIGLYCINE SULFATE; DL-ALPHA-ALANINE; DLATGS; CRYSTAL FORM; BIAS FIELD; FERROELECTRIC DOMAIN;
D O I：
10.1143/JJAP.30.3445
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Single crystals of ferroelectric triglycine sulfate (TGS) have been grown from solutions containing 10 and 30 mol% of DL-alpha-alanine. Crystal form, domain structure and distribution of internal bias field E(b) in these DL-alpha-alanine-doped triglycine sulfate: (DLATGS) crystals were investigated. Although the crystal form is influenced by the doping, it shows the symmetry of 2/m similar to pure TGS. The intensity and direction of E(b) distinctly depend on the crystal growth sector. The directions of E(b) in matching sectors in both b sides of the seed crystal are opposite to each other. Hence the domain structure has a mirror symmetry normal to the b-axis. These features of DLATGS are plainly explained by considering the chirality of alanine and the already-known properties of LATGS.
引用
收藏
页码：3445 / 3449
页数：5
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