Optical Activity of Ferroelectric 5PbO·3GeO2 Single Crystals
Optical Activity of Ferroelectric 5PbO·3GeO2 Single Crystals
复制标题
铁电5PbO·3GeO2单晶的光学活性
DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
K. Sugii
中科院分区：
文献类型：
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作者：
H. Iwasaki;K. Sugii
在提拉法生长的铁电晶体5PbO·3GeO2中发现了旋光功率(ρ=±5°35‘/mm，λ=6328A)。铁电自发极化P_s的反转引起晶体的对形变换，从而引起旋光功率符号的变化。回转系数G33符合方程G33=γ33ps，其中γ33是顺电相电回转张量。
Optical rotatory power (ρ = ± 5°35′/mm for λ = 6328 A) was found in the Czochralski‐grown ferroelectric crystal 5PbO·3GeO2. Reversal of the ferroelectric spontaneous polarization Ps caused the enantiomorphic transformation of the crystal and consequently the change in the sign of the optical rotatory power. The gyration coefficient g33 was found to fit the equation g33 = γ33Ps, where γ33 is the electrogyration tensor in the paraelectric phase.