Birefringence measurements on KTaO3:Li

Birefringence measurements on KTaO3:Li
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KTaO3:Li 的双折射测量

DOI:
10.1088/0022-3719/14/2/005
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发表时间:
1981
期刊:
Journal of Physics C: Solid State Physics
影响因子:
--
通讯作者:
E. Courtens
E. Courtens
中科院分区:
--
文献类型:
--
作者:
E. Courtens

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在K1-xLixTaO 3(x=0.026)单晶中的双折射观测表明一阶跃迁到具有大的均匀自发极化的畴态。在小的外电场下的测量表明,与通常的铁电体的主要区别在于本系统的非常长的弛豫时间。作者的结果与报道的极性玻璃行为的材料的关系进行了讨论。
Birefringence observations in a single crystal of K1-xLixTaO3 (x=0.026) indicate a first-order transition to a domain state with sections of large uniform spontaneous polarisation. Measurements under small external electric fields suggest that the main difference with usual ferroelectrics lies in the extremely long relaxation times of the present system. The relation of the author's results with the reported polar glass behaviour of the material is discussed.