High-density optical spin injection in self-assembled semiconductor quantum dots

被引：0

作者：

Murayama, Akihiro ^{[1
]}

Tamura, Norihiro ^{[1
]}

Yamazaki, Tatsushiro ^{[1
]}

Kiba, Takayuki ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Kita Ku, Sapporo, Hokkaido 0600814, Japan

来源：

JOURNAL OF LUMINESCENCE | 2013年 / 133卷

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

Quantum dot; Exciton; Spin dynamics; Spin injection; Diluted magnetic semiconductor;

D O I：

10.1016/j.jlumin.2011.12.032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

High-density optical spin injection and the dynamics from a diluted magnetic semiconductor (DMS) of Zn0.95Mn0.05Se as a spin injector into self-assembled quantum dots of CdSe have been studied by means of time- and spin-resolved photoluminescence. Spin relaxation during the injection becomes significant with increasing the density of spin-polarized exciton in the DMS. This spin relaxation can be caused by the diffusive transfer of spin-polarized electrons through the barrier, when the energy of spin-polarized electron generated in the DMS exceeds the barrier energy due to a filling effect for localized-exciton states in the DMS. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：110 / 113

页数：4

共 50 条

[31] Long coherence times in self-assembled semiconductor quantum dots
Birkedal, D
Leosson, K
Hvam, JM
SUPERLATTICES AND MICROSTRUCTURES, 2002, 31 (2-4) : 97 - 105
[32] Electronic correlations in gated and self-assembled semiconductor quantum dots
Hawrylak, P
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2000, 220 (01): : 19 - 25
[33] Self-assembled bioinspired quantum dots: Optical properties
Amdursky, N.
Molotskii, M.
Gazit, E.
Rosenman, G.
APPLIED PHYSICS LETTERS, 2009, 94 (26)
[34] Engineering The Optical Transitions of Self-Assembled Quantum Dots
Ameen, Tarek A.
Ilatikhameneh, Hesameddin
Valencia, Daniel
Rahman, Rajib
Klimeck, Gerhard
18TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ELECTRONICS (IWCE 2015), 2015,
[35] Optical anisotropy in self-assembled InP quantum dots
Sugisaki, M
Ren, HW
Nair, SV
Nishi, K
Sugou, S
Okuno, T
Masumoto, Y
PHYSICAL REVIEW B, 1999, 59 (08) : R5300 - R5303
[36] Optical charging of self-assembled InAs quantum dots
Heinrich, D
Finley, J
Skalitz, M
Hoffmann, J
Zrenner, A
Böhm, G
Abstreiter, G
OPTICAL PROPERTIES OF SEMICONDUCTOR NANOSTRUCTURES, 2000, 81 : 365 - 377
[37] Electrical and optical properties of self-assembled quantum dots
Henini, M
Patanè, A
Polimeni, A
Levin, A
Eaves, L
Main, PC
Hill, G
MICROELECTRONICS JOURNAL, 2002, 33 (04) : 313 - 318
[38] High-density ZnSe self-assembled quantum dots grown on ZnS/GaAs with special ZnS buffer layer
Lee, Ming-Kwei
Shih, Tsung-Hsiang
Lan, Chaur-Ching
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (08) : G778 - G781
[39] Optical control of electron spin dynamics in self-assembled (In,Ga)As/GaAs quantum dots
Greilich, A.
Oulton, R.
Zhukov, E. A.
Yugova, I. A.
Yakovlev, D. R.
Bayer, M.
Shabaev, A.
Efros, Al. L.
Stavarache, V.
Reuter, D.
Wieck, A.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2006, 243 (14): : 3719 - 3724
[40] Self-assembled quantum dots
Univ of Nottingham, Nottingham, United Kingdom
III Vs Rev, 3 (25-30):

← 1 2 3 4 5 →