二维铁电晶体

IF 0.6 4区材料科学 Q4 CRYSTALLOGRAPHY Crystallography Reports Pub Date : 2024-07-25 DOI:10.1134/S1063774524600303

V. M. Fridkin

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引用次数: 0

摘要

摘要根据朗道-金兹堡理论，研究了铁电晶体的极化转换动力学以及单晶纳米薄膜中从有域转换到均匀转换的过程。研究表明，在所选理论中，只有二维铁电体才能描述均匀（无畴）开关。本文介绍了二维铁电聚合物薄膜和钛酸钡薄膜的实验结果。对于超薄聚合物薄膜，这些结果也得到了 ab initio 计算的证实。

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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Two-Dimensional Ferroelectric Crystals

The polarization switching kinetics of ferroelectric crystals and the transition from the domain to uniform switching in single-crystal nanofilms have been considered within the Landau–Ginzburg theory. It is shown that, within the chosen theory, the uniform (domainless) switching can be described only for two-dimensional ferroelectrics. Experimental results for two-dimensional films of ferroelectric polymer and barium titanate are presented. For ultrathin polymer films, these results are also confirmed by ab initio calculations.

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来源期刊

Crystallography Reports 化学-晶体学

CiteScore

1.10

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.