Submillisecond electron spin relaxation in InP quantum dots

被引:57
作者
Ikezawa, M [1 ]
Pal, B
Masumoto, Y
Ignatiev, IV
Verbin, SY
Gerlovin, IY
机构
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[2] St Petersburg State Univ, Inst Phys, St Petersburg 198504, Russia
[3] SI Vavilov State Opt Inst, St Petersburg 190034, Russia
关键词
D O I
10.1103/PhysRevB.72.153302
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Light-induced orientation of electron spins in the negatively charged InP quantum dots is found to persist longer than 100 mu s. We have proved experimentally that the long-lived orientation is due to slow relaxation of the electron spins rather than to the dynamic nuclear polarization effects.
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页数:4
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共 16 条
[1]  
Awschalom DD, 2002, NANOSCI TECHNOL, P147
[2]   Optical pumping of the electronic and nuclear spin of single charge-tunable quantum dots [J].
Bracker, AS ;
Stinaff, EA ;
Gammon, D ;
Ware, ME ;
Tischler, JG ;
Shabaev, A ;
Efros, AL ;
Park, D ;
Gershoni, D ;
Korenev, VL ;
Merkulov, IA .
PHYSICAL REVIEW LETTERS, 2005, 94 (04) :1-4
[3]   Microsecond spin-flip times in n-GaAs measured by time-resolved polarization of photoluminescence -: art. no. 121307 [J].
Colton, JS ;
Kennedy, TA ;
Bracker, AS ;
Gammon, D .
PHYSICAL REVIEW B, 2004, 69 (12)
[4]   Optically driven spin memory in n-doped InAs-GaAs quantum dots -: art. no. 207401 [J].
Cortez, S ;
Krebs, O ;
Laurent, S ;
Senes, M ;
Marie, X ;
Voisin, P ;
Ferreira, R ;
Bastard, G ;
Gérard, JM ;
Amand, T .
PHYSICAL REVIEW LETTERS, 2002, 89 (20)
[5]   Interaction between the exciton and nuclear spin systems in a self-organized ensemble of InP/InGaP size-quantized islands [J].
Dzhioev, RI ;
Zakharchenya, BP ;
Korenev, VL ;
Lazarev, MV .
PHYSICS OF THE SOLID STATE, 1999, 41 (12) :2014-2019
[6]   Electron and nuclear spin interactions in the optical spectra of single GaAs quantum dots [J].
Gammon, D ;
Efros, AL ;
Kennedy, TA ;
Rosen, M ;
Katzer, DS ;
Park, D ;
Brown, SW ;
Korenev, VL ;
Merkulov, IA .
PHYSICAL REVIEW LETTERS, 2001, 86 (22) :5176-5179
[7]   Zeeman energy and spin relaxation in a one-electron quantum dot [J].
Hanson, R ;
Witkamp, B ;
Vandersypen, LMK ;
van Beveren, LHW ;
Elzerman, JM ;
Kouwenhoven, LP .
PHYSICAL REVIEW LETTERS, 2003, 91 (19)
[8]   Fine structure of the quantum-dot trion [J].
Kavokin, KV .
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 2003, 195 (03) :592-595
[9]   Spin relaxation in semiconductor quantum dots [J].
Khaetskii, AV ;
Nazarov, YV .
PHYSICAL REVIEW B, 2000, 61 (19) :12639-12642
[10]   Resonant spin amplification in n-type GaAs [J].
Kikkawa, JM ;
Awschalom, DD .
PHYSICAL REVIEW LETTERS, 1998, 80 (19) :4313-4316