间接吸收边缘附近层状相EuS2的光学性质

IF 0.6 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Bulletin of the Lebedev Physics Institute Pub Date : 2025-04-20 DOI:10.3103/S106833562460253X

S. N. Nikolaev, V. S. Krivobok, I. I. Usmanov, E. A. Ekimov

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引用次数: 0

摘要

利用反射显微镜在可见光和近红外波段研究了EuS2薄片的光学性质。结果表明，对于小片状区域，结合薄膜-衬底结构和衬底结构的光反射的模型可以充分描述微反射光谱。利用微反射光谱测定了间接吸收边缘（Eg = 0.83 eV）和间接吸收边缘以下的折射率（n = 2.9）。

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Optical Properties of the Layered Phase of EuS2 near the Indirect Absorption Edge

Reflection microscopy in the visible and near-infrared range is used to study optical properties of EuS₂ flakes. It is shown that for small flake areas, microreflection spectra can be adequately described by a model that combines the reflection of light from both the film‒substrate structure and the substrate. The indirect absorption edge (E_g = 0.83 eV) and the refractive index below the indirect absorption edge (n = 2.9) are determined from the microreflection spectra.

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来源期刊

Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

25.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.