Spin polarization of electrons in a magnetic impurity doped semiconductor quantum dot - The effect of electron-phonon interaction

被引：1

作者：

Misra, Deepanjali ^{[1
]}

Tripathy, Sukanta Kumar ^{[1
]}

机构：

[1] Natl Inst Sci & Technol, Palur Hills, Berhampur 761008, Orissa, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2016年 / 86卷 / 03期

关键词：

Impurity-doped semiconductor quantum dot; impurity concentration; electron-phonon interaction; spin polarization; INJECTION;

D O I：

10.1007/s12043-015-1032-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theoretical model is presented in this paper for degree of spin polarization in a light emitting diode (LED) whose epitaxial region contains quantum dots doped with magnetic impurity. The model is then used to investigate the effect of electron-phonon interaction on degree of spin polarization at different temperatures and magnetic fields. It is found that magnetic impurity increases the degree of spin polarization irrespective of temperature, while the electron-phonon interaction decreases the degree of spin polarization. Results are found to be in better agreement with experiments.

引用

页码：661 / 667

页数：7

共 50 条

[21] Electron-phonon interaction in a doped GaAs quantum well
Faugeras, C
Martinez, G
Riedel, A
Hey, R
Friedland, KJ
[J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 22 (1-3): : 586 - 589
[22] Electron-phonon interaction and the so-called phonon bottleneck effect in semiconductor quantum dots
Quantum Transition Project, Tokyo, Japan
[J]. Phys B Condens Matter, 1-4 (373-377):
[23] Electron-phonon interaction and the so-called phonon bottleneck effect in semiconductor quantum dots
Inoshita, T
Sakaki, H
[J]. PHYSICA B-CONDENSED MATTER, 1996, 227 (1-4) : 373 - 377
[24] EFFECT OF ELECTRON-PHONON INTERACTION ON THE HYDROGENIC IMPURITY BINDING-ENERGY IN A QUANTUM WELL
SHEN, MY
GU, SW
[J]. JOURNAL OF LUMINESCENCE, 1988, 40-1 : 735 - 736
[25] Influences of electron-phonon interaction on the thermoelectric effect in a parallel double quantum dot system
Wu Hai-Na
Sun Xue
Gong Wei-Jiang
Yi Guang-Yu
[J]. ACTA PHYSICA SINICA, 2015, 64 (07)
[26] Effect of electron-phonon interaction on Fano interference in the parallel double quantum dot structure
Gong, Weijiang
Zheng, Yisong
Wang, Jie
Lue, Tianquan
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2008, 245 (06): : 1175 - 1180
[27] Spin-orbit-assisted electron-phonon interaction and the magnetophonon resonance in semiconductor quantum wells
Abergel, D. S. L.
Fal'ko, Vladimir I.
[J]. PHYSICAL REVIEW B, 2008, 77 (03)
[28] THEORY OF ELECTRON-PHONON INTERACTION EFFECTS ON THE SPIN SUSCEPTIBILITY OF CONDUCTION ELECTRONS
TRIPATHI, GS
MISRA, CM
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (46) : 9183 - 9193
[29] Electron-phonon interaction in fan-shaped quantum dot and quantum wire
Zuo, Zheng-Wei
Xie, Hong-Jing
[J]. SUPERLATTICES AND MICROSTRUCTURES, 2011, 49 (01) : 60 - 73
[30] Influence of electron-phonon interaction on single electron tunneling in a quantum dot molecule
Wu, ZJ
Zhu, KD
Yuan, XZ
Zheng, H
[J]. ACTA PHYSICA SINICA, 2005, 54 (07) : 3346 - 3350

← 1 2 3 4 5 →