Scattering behavior in graphene quantum dots under laser field and magnetic flux

IF 2.4 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2025-08-11 DOI:10.1016/j.ssc.2025.116093

Mohammed El Azar , Ahmed Bouhlal , Hocine Bahlouli , Ahmed Jellal

引用次数: 0

Abstract

We show how Dirac electrons interact with a graphene quantum dots (GQDs), characterized by a scattering potential, when exposed to both a magnetic flux and circularly polarized light. After obtaining the solutions of the energy spectrum, we compute the scattering coefficients. These allow us to show how efficiently the electrons diffuse and how their probability density is distributed in space. Our results show that light polarization is key in controlling electron scattering. It affects electron localization near the GQDs and the strength of the scattering coefficients. We also investigate how light intensity and magnetic flux affect the formation of quasi-bound states. In addition, the electrostatic potential reduces the density of scattering states and fine-tunes the interaction between electrons and the quantum dot. This research improves our understanding of electron behavior in graphene nanostructures and suggests new ways to control electronic states at the quantum level.

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激光场和磁通量作用下石墨烯量子点的散射行为

我们展示了当暴露在磁通量和圆偏振光下时，狄拉克电子如何与以散射势为特征的石墨烯量子点（GQDs）相互作用。在得到能谱解后，计算散射系数。这使我们能够展示电子扩散的效率，以及它们的概率密度在空间中的分布。结果表明，光偏振是控制电子散射的关键。它影响GQDs附近的电子定位和散射系数的强度。我们还研究了光强和磁通量如何影响准束缚态的形成。此外，静电势降低了散射态的密度，并微调了电子与量子点之间的相互作用。这项研究提高了我们对石墨烯纳米结构中电子行为的理解，并提出了在量子水平上控制电子态的新方法。

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

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.