Electric field induced paraelectric-to- paraelectric phase transformations in Y2O3-Hf0.5Zr0.5O2 ceramics

IF 2.8 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2026-04-01 Epub Date: 2026-02-13 DOI:10.1016/j.ssc.2026.116361

Amit Kumar , Andy Fitch , Ajay Kumar Kalyani

引用次数: 0

Abstract

This study presents an in-depth analysis of the structural behavior of polycrystalline Y₂O₃-Hf_0.5Zr_0.5O₂ ceramics under the influence of an electric field, exploiting high-resolution powder synchrotron X-ray diffraction. The samples were subjected to a novel powder poling method. The experimental results reveal a phase transformation within the material, transitioning from a paraelectric monoclinic phase to a paraelectric cubic phase. Detailed structural analysis suggests, this transformation appears to proceed through an intermediate orthorhombic (Pbcn) phase. The phase transition appears to be primarily influenced by the mismatch in dielectric permittivity (ε or χ) between the different phases and polymorphic phase boundary region, coupled with the presence of oxygen vacancies.

查看原文本刊更多论文

电场诱导Y2O3-Hf0.5Zr0.5O2陶瓷的对电相变

本研究利用高分辨率粉末同步x射线衍射技术，深入分析了多晶Y2O3-Hf0.5Zr0.5O2陶瓷在电场作用下的结构行为。对样品进行了一种新的粉末研磨方法。实验结果表明，材料内部发生了相变，从准电单斜相转变为准电立方相。详细的结构分析表明，这种转变似乎是通过中间正交相（Pbcn）进行的。相变似乎主要受不同相之间介电常数（ε或χ）的不匹配和多晶相边界区域以及氧空位的存在的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.