Acoustic emission upon spontaneous polarization in triglycine sulfate single crystals

被引：3

作者：

Azimov, Sh. Sh. ^{[1
]}

Petukhov, V. N. ^{[1
]}

Lakaev, A. N. ^{[1
]}

Leksovskii, A. M. ^{[2
]}

机构：

[1] Tajik Acad Sci, Umarov Phys Tech Inst, Ul Aini 299-1, Dushanbe 734063, Tajikistan

[2] Russian Acad Sci, Ioffe Phys Tech Inst, Politekhn Skaya Ul 26, St Petersburg 194021, Russia

来源：

TECHNICAL PHYSICS | 2016年 / 61卷 / 04期

关键词：

PHASE-TRANSITION;

D O I：

10.1134/S106378421604006X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the results of analysis of acoustic emission (AE) under thermal action on a triglycine sulfate (NH2CH2COOH)(3) a <... H2SO4 crystal. The triglycine sulfate single crystals grown from solution and not subjected to mechanical treatment are heated to a temperature above the Curie point (T (C) = 49A degrees C). During natural cooling of the crystal, a transition from the paraelectric to ferroelectric phase is accompanied by intense AE. In the temperature range similar to 28-30A degrees C, an anomalous drop of the mean-square voltage in the AE signal is observed against the background of monotonic accumulation of AE events.

引用

页码：635 / 638

页数：4

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