Acoustic emission upon spontaneous polarization in triglycine sulfate single crystals

详细信息    查看全文

• 作者：Sh. Sh. Azimov ; V. N. Petukhov ; A. N. Lakaev ; A. M. Leksovskii
• 刊名：Technical Physics
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：61
• 期：4
• 页码：635-638
• 全文大小：504 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Mechanics, Fluids and Thermodynamics
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1090-6525
• 卷排序：61

文摘

We report on the results of analysis of acoustic emission (AE) under thermal action on a triglycine sulfate (NH₂CH₂COOH)₃ ⋅ 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 = 49°C). During natural cooling of the crystal, a transition from the paraelectric to ferroelectric phase is accompanied by intense AE. In the temperature range ∼28–30°C, an anomalous drop of the mean-square voltage in the AE signal is observed against the background of monotonic accumulation of AE events.Original Russian Text © Sh.Sh. Azimov, V.N. Petukhov, A.N. Lakaev, A.M. Leksovskii, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 4, pp. 155–158.