The temperature-dependent domains,SHG effect and piezoelectric coefficient of TGS

The temperature-dependent,second-order,nonlinear,optical coefficient（x~（（2）））.piezoelectric coefficient （d_（33））,pyroelectric coefficient（Ps） and domains on triglycine sulfate（TGS） reported herein provide a clue for us to investigate these as a typical second-order phase transition.The symmetry brea...

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Bibliographic Details
Published inChinese chemical letters Vol. 24; no. 8; pp. 681 - 684
Main Author Xiong, Ren-Geng
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2013
Ordered Matter Science Research Center, Southeast University, Nanjing 211189, China
Subjects
Domains
Ferroelectric
Landau理论
Piezoelectric force microscopy
SHG效应
Symmetry breaking
二阶非线性光学系数
压电系数
温度变化
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硫酸三甘氨酸
Domains
Piezoelectric force microscopy
Ferroelectric
Symmetry breaking
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Summary:The temperature-dependent,second-order,nonlinear,optical coefficient（x~（（2）））.piezoelectric coefficient （d_（33））,pyroelectric coefficient（Ps） and domains on triglycine sulfate（TGS） reported herein provide a clue for us to investigate these as a typical second-order phase transition.The symmetry breaking occurrence is definitely confirmed by the temperature-dependent x~（（2）） in which x~（（2）） displays a limited value at the ferroelectric phase,indicating the space group（P2_1） chosen is correct,and when x~（（2）） basically maintains a zero value at the paraelectric phase,indicating the space group should be centric.Interestingly,after normalization of x~（（2））,d_（33） or Ps,the change trend with temperature is basically overlapped,probably abiding by Landau theory.Moreover,temperature-dependent domains directly show the symmetry breaking occurrence.
Bibliography:The temperature-dependent,second-order,nonlinear,optical coefficient（x~（（2）））.piezoelectric coefficient （d_（33））,pyroelectric coefficient（Ps） and domains on triglycine sulfate（TGS） reported herein provide a clue for us to investigate these as a typical second-order phase transition.The symmetry breaking occurrence is definitely confirmed by the temperature-dependent x~（（2）） in which x~（（2）） displays a limited value at the ferroelectric phase,indicating the space group（P2_1） chosen is correct,and when x~（（2）） basically maintains a zero value at the paraelectric phase,indicating the space group should be centric.Interestingly,after normalization of x~（（2））,d_（33） or Ps,the change trend with temperature is basically overlapped,probably abiding by Landau theory.Moreover,temperature-dependent domains directly show the symmetry breaking occurrence.
Ferroelectric Piezoelectric force microscopy Symmetry breaking Domains
11-2710/O6
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2013.05.015