Electric field induced optical absorption and refractive index changes in a diluted magnetic quantum well

被引：6

作者：

Leonora, J. Merciline ^{[1
]}

Peter, A. John ^{[2
]}

Yoo, ChangKyoo ^{[2
]}

机构：

[1] NPR Arts & Sci Coll, Dept Phys, Dindigul 624401, Tamil Nadu, India

[2] Kyung Hee Univ, Coll Engn, Dept Environm Sci & Engn, Yongin 446701, Gyeonggi, South Korea

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2013年 / 47卷

关键词：

BINDING-ENERGY; SUSCEPTIBILITIES; TRANSITIONS; STATES;

D O I：

10.1016/j.physe.2012.10.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Binding energy of a confined exciton is investigated in a Cd1-xoutMnxoutTe/Cd1-xinMnxinTe/Cd1-xoutMnxoutTe diluted magnetic quantum well in the influence of electric field. Calculations are performed for various Mn incorporation in Cd1-xMnxTe material within a single band effective mass approximation using variational method. Spin polaronic shifts are estimated using mean field theory for different Mn concentration and the well sizes. A theoretical study of diluted magnetic semiconductors treating local sp-d exchange interaction J between the itinerant carriers and the Mn electrons is treated within a realistic band structure. The optical absorption and the refractive index changes as a function of normalized photon energy in the presence of electric field strength and the Mn ion content are analysed. Our results show that the occurred red shift of the absorption resonant peak due to the electric field gives the information about the variation of two energy levels in the quantum well. The optical absorption coefficients and the refractive index changes strongly depend on the incident optical intensity, the electric field strength and Mn content. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：109 / 115

页数：7

共 33 条

[1] Akhmediev N.N., 1997, NONLINEAR SOLITONS P
[2] Arunachalam N., 2011, PHYS STATUS SOLIDI B
[3] Bassani F., 1975, ELECT STATES OPTICAL, P152
[4] Influence. of confined phonon modes on the thermal behavior of AlAs/GaAs quantum cascade structures
Becker, C
Sirtori, C
Page, H
Robertson, A
Ortiz, V
Marcadet, X
[J]. PHYSICAL REVIEW B, 2002, 65 (08): : 853051 - 853054
[5] Bir G. L., 1974, SYMMETRY STRAIN INDU
[6] UNUSUAL ELASTIC-CONSTANTS OF CUBIC MNTE IN STRAINED-LAYER SUPERLATTICES MEASURED BY X-RAY-DIFFRACTION
BUSCHERT, JR
PEIRIS, FC
SAMARTH, N
LUO, H
FURDYNA, JK
[J]. PHYSICAL REVIEW B, 1994, 49 (07): : 4619 - 4622
[7] Photoluminescence of CdTe/CdMnTe multiple quantum wells excited near the Mott transition
Cain, N
ONeill, M
Nicholls, JE
Stirner, T
Hagston, WE
Ashenford, DE
[J]. JOURNAL OF LUMINESCENCE, 1997, 75 (04) : 269 - 275
[8] Interband optical transitions of an InAs/InGaAs dots-in-a-well structure
Chen, Rui
Liu, H. Y.
Sun, H. D.
[J]. SOLID STATE COMMUNICATIONS, 2010, 150 (15-16) : 707 - 710
[9] Intraband absorption and Stark effect in silicon nanocrystals
de Sousa, JS
Leburton, JP
Freire, VN
da Silva, EF
[J]. PHYSICAL REVIEW B, 2005, 72 (15)
[10] Electron cyclotron mass in undoped CdTe/CdMnTe quantum wells
Dremin, AA
Yakovlev, DR
Sirenko, AA
Gubarev, SI
Shabelsky, OP
Waag, A
Bayer, M
[J]. PHYSICAL REVIEW B, 2005, 72 (19)

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