Influence of the surface roughness on electron-phonon interaction in an intrinsic CdTe single crystal

Medel-Ruiz C. I.; Molina-Contreras J. R.; Frausto-Reyes C.; Sevilla-Escoboza J. R.; de Guevara H. Perez Ladron

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Influence of the surface roughness on electron-phonon interaction in an intrinsic CdTe single crystal

机译：内在CDTE单晶中的表面粗糙度对电子敏晶体相互作用的影响

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In this work, we found that the electron-phonon interaction (EPI) is dependent on the surface roughness. Simulations of Resonance Raman Spectroscopy (RRS) spectra, show that the Fano asymmetry parameter q, decreases as the Mean Surface Roughness (MSR) increases. They also make it clear, that the magnitude of the EPI strength increases with increasing roughness. Our results also show that the EPI along with the surface morphology in an undoped CdTe sample allow the manifestation of other phonons in the RRS spectra. This work contributes to understand and potentially control the EPI in semiconductors.

机译：在这项工作中，我们发现电子-声子相互作用（EPI）依赖于表面粗糙度。共振拉曼光谱（RRS）的模拟表明，Fano不对称参数q随着平均表面粗糙度（MSR）的增加而减小。他们还明确指出，随着粗糙度的增加，EPI强度的大小会增加。我们的结果还表明，EPI和未掺杂CdTe样品中的表面形貌允许在RRS光谱中显示其他声子。这项工作有助于理解和潜在地控制半导体中的EPI。

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来源
《Physica, B. Condensed Matter》 |2021年第1期|共5页
作者
Medel-Ruiz C. I.; Molina-Contreras J. R.; Frausto-Reyes C.; Sevilla-Escoboza J. R.; de Guevara H. Perez Ladron;
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作者单位

Univ Guadalajara Ctr Univ Lagos Ave Enrique Diaz de Leon 1144 Lagos De Moreno 47460 Jal Mexico;

Inst Tecnol Aguascalientes Dept Ingn Elect &

Elect Ave Lopez Mateos 1081 Aguascalientes 20256 Ags Mexico;

Ctr Invest Opt AC Unidad Aguascalientes Prolong Constituc 607 Aguascalientes 20200 Ags Mexico;

Univ Guadalajara Ctr Univ Lagos Ave Enrique Diaz de Leon 1144 Lagos De Moreno 47460 Jal Mexico;

Univ Guadalajara Ctr Univ Lagos Ave Enrique Diaz de Leon 1144 Lagos De Moreno 47460 Jal Mexico;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
Resonance Raman spectroscopy; Fano resonance; Electron-phonon interaction;

机译：共振拉曼光谱;法诺共振;电子-声子相互作用;

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Influence of the surface roughness on electron-phonon interaction in an intrinsic CdTe single crystal

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