Quantum size effect on discrete states of a hydrogenic impurity in a core/shell nanowire

被引：0

作者：

Ha S. ^{[1
]}

Li Y. ^{[1
]}

Zhu J. ^{[2
]}

机构：

[1] College of Sciences, Inner Mongolia University of Technology, Hohhot

[2] School of Physical Science and Technology, Inner Mongolia University, Hohhot

来源：

Solid State Communications | 2024年 / 388卷

基金：

中国国家自然科学基金;

关键词：

Composition; Core radius; Core/shell nanowire; Discrete; Hydrogenic impurity;

D O I：

10.1016/j.ssc.2024.115557

中图分类号：

学科分类号：

摘要：

The hydrogenic impurity states in a core/shell nanowire is studied by a variational method combined with a finite-difference algorithm. The quantum size effect on the wavefunction localization and energy levels at the ground state and lowing-excited eigenstates are analyzed by changing the core radius or shell composition. The transition from discrete states (confined) to extended states (continuum) will occur if changing the core radius or shell composition to a certain critical value. The ground-state binding energy of the hydrogenic impurity in the core/shell nanowire shows different variation trends with radius and composition. © 2024

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