Transfer dynamics of spin-polarized excitons into semiconductor quantum dots

被引：1

作者：

Murayama, A. ^{[1
]}

Furuta, T. ^{[1
]}

Oshino, S. ^{[1
]}

Hyomi, K. ^{[1
]}

Sakuma, M. ^{[1
]}

Souma, I. ^{[1
]}

Dagnelund, D. ^{[2
]}

Buyanova, I. A. ^{[2
]}

Chen, W. M. ^{[2
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Linkoping Univ, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden

来源：

JOURNAL OF LUMINESCENCE | 2009年 / 129卷 / 12期

基金：

日本学术振兴会;

关键词：

Quantum dot; Spin dynamics; Exciton; Diluted magnetic semiconductor; ELECTRON-SPIN;

D O I：

10.1016/j.jlumin.2009.03.036

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study oil the transfer dynamics of spin-polarized excitons into self-assembled quantum dots (QDs) of CdSe coupled with a diluted magnetic semiconductor (DMS) layer of ZnMnSe through a ZnSe barrier layer A variation in the degree of circular polarization P of excitonic photoluminescence in the coupled QDs was observed between samples with different thicknesses (L(B)) of the non-magnetic barrier Relatively high values of P (similar to 0 3) were obtained in the samples with L(B) = 1 or 2 nm, and the time dependences of the P value indicate the spin-transfer dynamics. From the L(B) dependence of the spin-transfer time, the spin-transfer mechanism is discussed, namely spin-conserving energy transfer. (C) 2009 Elsevier B.V. All rights reserved

引用

页码：1927 / 1930

页数：4

共 50 条

[1] Transfer dynamics of spin-polarized excitons in ZnCdMnSe/ZnCdSe double quantum wells
Park, J. H.
Souma, I.
Oka, Y.
Murayama, A.
Dagnelund, D.
Buyanova, I. A.
Chen, W. M.
[J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2008, 53 (01) : 167 - 170
[2] Cooling and spin-relaxation dynamics of spin-polarized excitons in a diluted magnetic semiconductor quantum well
Murayama, A.
Saito, K.
Souma, I.
[J]. PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 1, 2009, 6 (01): : 315 - 318
[3] Quench dynamics of spin in quantum dots coupled to spin-polarized leads
Wrzesniewski, Kacper
Weymann, Ireneusz
[J]. PHYSICAL REVIEW B, 2019, 100 (03)
[4] Phonon-induced efficient transfer of spin-polarized excitons in diluted magnetic semiconductor double quantum wells
Park, Jiho
Saito, Kazuya
Souma, Izuru
Oka, Yasuo
Murayama, Akihiro
[J]. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 2007, 46 (11): : 7290 - 7293
[5] Phonon-induced efficient transfer of spin-polarized excitons in diluted magnetic semiconductor double quantum wells
Park, Jiho
Saito, Kazuya
Souma, Izuru
Oka, Yasuo
Murayama, Akihiro
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (11): : 7290 - 7293
[6] Spin-Polarized Scanning Tunneling Spectroscopy of Diluted Magnetic Semiconductor Quantum Dots
Chakrabarti, Sudipto
Pal, Amlan J.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (44): : 25786 - 25791
[7] Spin-polarized current in double quantum dots
Li Ai-Xian
Duan Su-Qing
[J]. CHINESE PHYSICS B, 2012, 21 (11)
[8] Spin-polarized current in double quantum dots
李爱仙
段素青
[J]. Chinese Physics B, 2012, (11) : 385 - 389
[9] Spin-polarized transport through double quantum dots
Tanaka, Y
Kawakami, N
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (10) : 2795 - 2801
[10] SPECTROSCOPY OF SPIN-POLARIZED EXCITONS IN SEMICONDUCTORS
IVCHENKO, EL
[J]. PURE AND APPLIED CHEMISTRY, 1995, 67 (03) : 463 - 472

← 1 2 3 4 5 →