原始和质子辐照 FeSe 中沿孪生边界的涡流穿透

IF 3.1 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physical Review Materials Pub Date : 2024-08-21 DOI:10.1103/physrevmaterials.8.084806

Tong Ren, Yue Sun, Francesco Laviano, Ryousuke Sakagami, Zhi Xiang Shi, Tsuyoshi Tamegai

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引用次数: 0

摘要

在 Ts∼90K 温度以下，单晶硒化铁会发生结构相变，同时出现晶格畴界（称为孪晶界）。偏光显微镜验证了原始 FeSe 中孪晶边界的存在，并表明质子辐照 FeSe 中存在广泛的微小缠绕。在孪晶硒铁中，涡流穿透显示出一种分形的迷宫模式，很可能是由这些孪晶域引导的。我们推测质子辐照晶体中存在大量微孪晶，但宏观孪晶边界仍然是涡旋运动的主要通道。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Vortex penetration along twin boundaries in pristine and proton-irradiated FeSe

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Vortex penetration along twin boundaries in pristine and proton-irradiated FeSe

Below

T_{s} \sim 90 K

, single-crystal FeSe undergoes a structural phase transition coinciding with the emergence of lattice domain boundaries, termed twin boundaries. Polarized-light microscopy validated the presence of twin boundaries in pristine FeSe and indicated the existence of extensive microsized twining in proton-irradiated FeSe. In twinned FeSe, vortex penetration displays a fractal, mazelike pattern, likely guided by these twin domains. We speculate substantial microtwinning in the proton-irradiation crystals, yet macroscopic twin boundaries persist as primary conduits for vortex motion.

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来源期刊

Physical Review Materials Physics and Astronomy-Physics and Astronomy (miscellaneous)

CiteScore

5.80

自引率

5.90%

发文量

611

期刊介绍： Physical Review Materials is a new broad-scope international journal for the multidisciplinary community engaged in research on materials. It is intended to fill a gap in the family of existing Physical Review journals that publish materials research. This field has grown rapidly in recent years and is increasingly being carried out in a way that transcends conventional subject boundaries. The journal was created to provide a common publication and reference source to the expanding community of physicists, materials scientists, chemists, engineers, and researchers in related disciplines that carry out high-quality original research in materials. It will share the same commitment to the high quality expected of all APS publications.