The Phonon Confinement Effect on the Impurity States in Cylindrical Nanowire With a Finite Confining Potential in Presence of Electric and Magnetic Fields

被引：0

作者：

Yeranosyan, Mkrtich A. ^{[1
]}

Shahbandari, Abbas G. ^{[1
]}

Vartanian, Arshak L. ^{[1
]}

机构：

[1] Yerevan State Univ, Dept Solid State Phys, Yerevan 0025, Armenia

来源：

ULTRAFINE GRAINED AND NANO-STRUCTURED MATERIALS IV | 2014年 / 829卷

关键词：

Quantum wire; Electric and Magnetic field; Bound polaron; Phonon confinem-ent; PARABOLIC QUANTUM-DOT; BINDING-ENERGY; HYDROGENIC IMPURITY; COULOMB IMPURITY; BOUND POLARON; WIRES; MAGNETOPOLARON;

D O I：

10.4028/www.scientific.net/AMR.829.795

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the framework of effective mass approximation, the Landau-Pekar variational procedure is adopted to study the ground-state binding energy of a hydrogenic impurity in a semiconductor nanowire with finite confining potential subjected to both external fields (electric and magnetic) and electron-polar optical phonon interaction taking into account the phonon confinement effect. The results for the binding energy as well as polaronic correction are obtained as a function of the wire radius, impurity position and applied fields. Calculated results reveal that the values of the polaronic shifts of impurity binding energy can be quite different for cases with finite and infinite confining potentials.

引用

页码：795 / 799

页数：5

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