Magneto-Optical Properties of Oxidized Co Nanowires on Pt Substrate,Physica Status Solidi (B) - Basic Solid State Physics

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Magneto-Optical Properties of Oxidized Co Nanowires on Pt Substrate
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2022-07-07 , DOI: 10.1002/pssb.202200018
Kseniya Tsysar ₁ , Ekaterina Smelova ₁ , Dmitry Bazhanov _{1,

2,

3}

Affiliation

This work presents the results of the first-principals study of magneto-optical properties of oxidized Co nanowires on vicinal Pt surfaces. Two types of vicinal platinum surface (Pt(332) and Pt(322)) are studied to analyze the effect of surface structure on oxidation process and on the magneto-optical properties of oxidized Co nanowires. The study reveals the change of magnetic coupling in Co nanowire under oxidation, which is sensitive to step edge geometry of vicinal surface. The dielectric tensor and reflectivity are calculated for oxide structures in order to find their main features in optical characteristic. Besides, the reflectance difference spectra are constructed for pure and oxidized nanowires in order to reveal the effect of interplay between magnetic state and oxidation on the optical properties of magnetic nanowires, which can be useful for tailoring their magnetic properties in spintronic devices.

中文翻译：

Pt衬底上氧化钴纳米线的磁光特性

这项工作展示了在邻位 Pt 表面上氧化的 Co 纳米线的磁光特性的第一性原理研究的结果。研究了两种类型的连位铂表面（Pt（332）和Pt（322）），以分析表面结构对氧化过程和氧化钴纳米线磁光特性的影响。该研究揭示了氧化下Co纳米线中磁耦合的变化，这对相邻表面的阶梯边缘几何形状敏感。计算氧化物结构的介电张量和反射率，以找出它们在光学特性方面的主要特征。此外，构建了纯纳米线和氧化纳米线的反射率差异光谱，以揭示磁性纳米线和氧化之间的相互作用对磁性纳米线光学性质的影响，

更新日期：2022-07-07

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