Dynamic X-ray magnetic circular dichroism of yttrium iron garnet

IF 2.8 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2026-01-01 Epub Date: 2025-10-27 DOI:10.1016/j.cap.2025.10.015

Changsoo Kim , Kyongmo An , Kyoung-Woong Moon , Younghak Kim , Chanyong Hwang

引用次数: 0

Abstract

High-brilliance X-rays with a broad energy range, provided by synchrotron facilities, have played a crucial role in revealing the electronic, magnetic, and lattice properties of condensed matter systems. Recently, the pulsed nature of synchrotron X-rays has enabled a variety of time-resolved experiments. In this study, we employed a time-resolved XFMR (X-ray Ferromagnetic Resonance) technique to measure the dynamic XMCD (X-ray Magnetic Circular Dichroism) spectrum of Yttrium Iron Garnet by probing the precessional motion of magnetization. The dynamic XMCD spectrum, obtained by sweeping the X-ray photon energy under the optimal XFMR condition, provides information comparable to that of static XMCD. Due to the fluorescence-based detection scheme of XFMR, the L₂ peak appears with high clarity, and the baseline remains flat and artifact-free, demonstrating the potential of dynamic XMCD as a powerful alternative to conventional XMCD techniques.

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钇铁石榴石的动态x射线磁性圆二色性

由同步加速器设备提供的具有宽能量范围的高亮度x射线在揭示凝聚态物质系统的电子，磁性和晶格性质方面发挥了至关重要的作用。最近，同步加速器x射线的脉冲特性使各种时间分辨实验成为可能。在这项研究中，我们采用时间分辨的XFMR （x射线铁磁共振）技术，通过探测磁化的进动运动来测量钇铁石榴石的动态XMCD （x射线磁圆二色）光谱。在最佳XFMR条件下，通过扫描x射线光子能量获得的动态XMCD光谱提供了与静态XMCD相当的信息。由于XFMR基于荧光的检测方案，L2峰具有高清晰度，基线保持平坦且无伪影，表明动态XMCD作为传统XMCD技术的强大替代方案的潜力。

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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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.