碲镉(//)锰碲镉双势垒异质结构中的自旋依赖性空穴传输：δ电位的影响

IF 1.9 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Pramana Pub Date : 2024-10-24 DOI:10.1007/s12043-024-02841-z

R Dilber Pushpitha, J Thirumalai, R Krishnan

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引用次数: 0

摘要

研究了具有双势垒和双δ势的碲镉锰合金异质结构中自旋相关的空穴传输。由于所考虑的异质结构是对称的，而且没有施加外场，因此研究中只包括德雷斯豪斯自旋轨道相互作用。利用传递矩阵法分析了空穴随自旋变化的传输。双 δ 电位高度和它们之间的距离会影响轻洞（LH）和重洞（HH）的透射系数、极化效率和隧穿时间。报告了 LH 和 HH 在共振发生的能量和极化效率方面的响应对比。

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Spin-dependent hole transport in CdTe\(/\)CdMnTe double-barrier heterostructure: effect of δ-potential

The spin-dependent hole transport in the CdTe\(/\)CdMnTe heterostructure with double barriers and double δ-potentials is studied. Since the considered heterostructure is symmetric and no external field is applied, only the Dresselhaus spin–orbit interaction is included in the study. The transfer matrix method is used to analyse the spin-dependent transmission of holes. The double δ-potential height and the distance between them influence the transmission coefficient, polarisation efficiency and tunnelling time of the light holes (LH) and heavy holes (HH). The contrast in the response of LH and HH in terms of energy at which resonance occurs and polarisation efficiency are reported.

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来源期刊

Pramana 物理-物理：综合

CiteScore

3.60

自引率

7.10%

发文量

206

审稿时长

3 months

期刊介绍： Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.