Proustite - a new ferroelectric with no 180 - polarization reversalстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:The aim of this work was to prove and examine the peculiarities of ferroelectric phase transition in proustite, at T equals 28. 7 K, which is first order and is accompanied by the change of symmetry from 3m to m or I. The authors performed their measurements in glass vacuum cryostate in the temperature interval from 4. 2 up to 300 K. Accuracy of stabilization was not worse than 10** minus **3 K. As the symmetry axis of the crystal and the axis of grown boule are not collinear, but dispose at the angle of 20-35 degree , then remainder temperature tenses appear in the crystal structure, which determine the dielectric unipolarity of samples.