한국결정학회지 (Korean Journal of Crystallography)
- 제12권1호
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- Pages.14-19
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- 2001
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- 1229-8700(pISSN)
완화형 가유전체에서 전계인가에 따른 격자왜곡과 강유전물성의 상관관계
Electric-Field-Induced Lattice Distortion and Related Properties in Relaxor Ferroelectrics
초록
Effects of electric-field-induced lattice distortion on the polarization and strain were investigated in Pb(Mg/sub 1/3/Nb/sub 2/3)O₃ relaxor ferroelectric ceramics in the temperature range of -50℃∼90℃. The ratio of residual strain and polarization (S/sub r//P/sub r/ rarely depends on the temperature. However, the ratio of the electric field included strain and polarization (S/sub induced//P/sub induced/) increased as the temperature decreases below phase transition temperature. To explain these experimental results, a simple rigid ion model concentrating on only Bo/sub 6/ octahedron was suggested.
키워드