Existence of a ferroelectric phase in the KTaO3:Li crystal
Smolenskii G. A., Sotnikov A. V., Syrnikov P. P., Yushin N. K.
It has been established on the basis of acoustic, dielectric, pyroelectric, and optical experiments that in potassium tantalate crystals with noncentral lithium impurity a phase transition to the ferroelectric phase, rather than to the "polar glass" phase, occurs.
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![](/ps/1488/article_22710_800_head.png "It has been established on the basis of acoustic, dielectric, pyroelectric, and optical experiments that in potassium tantalate crystals with noncentral lithium impurity a phase transition to the ferroelectric phase, rather than to the "polar glass" phase, occurs.")