Exploration of second and third-harmonic generation in quantum ring/envelopping oxides subjected to a lateral electric field: Case of GaAs/ AlxGa1-xAs

IF 2.7 Q2 PHYSICS, CONDENSED MATTER
K. Hasanirokh , A. Naifar
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引用次数: 0

Abstract

For the first time, this research unlocks the mysterious behavior of localized electrons within a quantum ring (QR) exposed to a lateral x-axis electric flux in the presence of distinct enveloping oxidative environments. The parity symmetry with respect to the x-axis remains conserved, allowing us to classify the electron states based on their parity eigenvalues. Based on our conducted quantitative analysis, we have identified all the decisive metrics (radius ratio, width, relaxation time, electric strength, inner radius and host permittivity) that influence the amplitude of the wavefunction as well as its spatial extent. Second and third harmonic generation coefficients have also been scrutinized and the major outcomes revealed a strong sensitivity to the presence of neighboring oxides. The product of matrix elements exhibits a non-monotonic dependence on QR width, peaking at an intermediate value. With an increasing electrostatic flux ratios, all the resonant frequencies sweep across longer wavelengths with an amplitude improvement for small geometric ratios. The combination of all these factors is expected to open a new avenue for industrial research where QRs are predominantly selected as candidates.
横向电场作用下量子环/包络氧化物中二次和三次谐波产生的探索:以GaAs/ AlxGa1-xAs为例
这项研究首次解开了量子环(QR)内的局部电子在不同包围氧化环境下暴露于横向x轴电通量的神秘行为。关于x轴的宇称对称仍然是守恒的,允许我们根据它们的宇称特征值对电子态进行分类。根据我们进行的定量分析,我们已经确定了影响波函数振幅及其空间范围的所有决定性指标(半径比、宽度、弛豫时间、电强度、内半径和主介电常数)。第二和第三次谐波产生系数也被仔细研究,主要结果显示对邻近氧化物的存在有很强的敏感性。矩阵元素的乘积与QR宽度呈非单调关系,在中间值处达到峰值。随着静电通量比的增加,所有谐振频率扫过更长的波长,并且在较小的几何比下幅度有所提高。所有这些因素的结合有望为工业研究开辟一条新的途径,在工业研究中,QRs主要被选为候选对象。
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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CiteScore
6.50
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