锗掺杂（PbySn1–y）2P2S（Se）6单晶的量子顺电性和感应铁电性

IF 0.3 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Lithuanian Journal of Physics Pub Date : 2020-04-28 DOI:10.3952/physics.v60i2.4227

I. Zamaraite, A. Dziaugys, Y. Vysochanskii, J. Banys

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引用次数: 1

摘要

本文报道了四种单晶Pb2P2S6、（Pb0.98Ge0.02）2P2S6，（Pb0.7Sn0.3）2P2S6+5%Ge和（Pb0.7Sn0.3）2P2P2Se6+5%Ge20K的介电研究。在所有这些材料中，观察到了反介电常数的非经典T2温度依赖性。测量了Pb2P2S6基单晶的介电常数在20到300K之间。基于Barrett模型作为量子顺电的特征，分析了介电常数的温度依赖性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Quantum paraelectricity and induced ferroelectricity by germanium doping of (PbySn1–y)2P2S(Se)6 single crystals

In this paper we report a dielectric study on four single crystals Pb2P2S6, (Pb0.98Ge0.02)2P2S6, (Pb0.7Sn0.3)2P2S6 + 5% Ge and (Pb0.7Sn0.3)2P2Se6 + 5% Ge down to 20 K. A new quantum paraelectric state was reported in the Ge-doped samples at low temperatures. In all of these materials the non-classical T2 temperature dependences of inverse dielectric permittivity were observed. The dielectric constants of Pb2P2S6-based single crystals were measured between 20 and 300 K. The temperature dependences of dielectric permittivity were analysed on the basis of Barrett’s model as a signature of quantum paraelectricity.

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来源期刊

Lithuanian Journal of Physics 物理-物理：综合

CiteScore

0.90

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The main aim of the Lithuanian Journal of Physics is to reflect the most recent advances in various fields of theoretical, experimental, and applied physics, including: mathematical and computational physics; subatomic physics; atoms and molecules; chemical physics; electrodynamics and wave processes; nonlinear and coherent optics; spectroscopy.