SEMI OpenIR  > 中国科学院半导体研究所(2009年前)
Photoinduced spin alignment of the magnetic ions in (Ga,Mn)As
Sun BQ (Sun Baoquan); Jiang DS (Jiang Desheng); Sun Z (Sun Zheng); Ruan XZ (Ruan Xuezhong); Deng JJ (Deng Jiajun); Zhao JH (Zhao Jianhua); Ji Y (Ji Yang); Xu ZY (Xu Zhongying); Sun, BQ, Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China. E-mail: bqsun@red.semi.ac.cn
2006
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume100Issue:8Pages:Art.No.083104
AbstractTime-resolved Kerr rotation measurement in the (Ga,Mn)As diluted magnetic semiconductor allows direct observation of the dynamical properties of the spin system of the magnetic ions and the spin-polarized holes. Experimental results show that the magnetic ions can be aligned by the polarized holes, and the time scales of spin alignment and relaxation take place in tens and hundreds of picoseconds, respectively. The Larmor frequency and effective g factor obtained in the Voigt geometry show an unusual temperature dependence in the vicinity of the Curie temperature due to the exchange coupling between the photoexcited holes and magnetic ions. Such a spin coherent precession can be amplified or destructed by two sequential excitation pulses with circularly copolarized or oppositely polarized helicity, respectively. (c) 2006 American Institute of Physics.
metadata_83chinese acad sci, inst semicond, sklsm, beijing 100083, peoples r china
KeywordCdte/cd1-xmnxte Quantum-wells Semiconductor Heterostructures Larmor Precession Mn2++ Moments Dynamics Polarons Spectroscopy Organization Cd1-xmnxse Carriers
Subject Area光电子学
Indexed BySCI
Language英语
Date Available2010-04-11
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/10322
Collection中国科学院半导体研究所(2009年前)
Corresponding AuthorSun, BQ, Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China. E-mail: bqsun@red.semi.ac.cn
Recommended Citation
GB/T 7714
Sun BQ ,Jiang DS ,Sun Z ,et al. Photoinduced spin alignment of the magnetic ions in (Ga,Mn)As[J]. JOURNAL OF APPLIED PHYSICS,2006,100(8):Art.No.083104.
APA Sun BQ .,Jiang DS .,Sun Z .,Ruan XZ .,Deng JJ .,...&Sun, BQ, Chinese Acad Sci, Inst Semicond, SKLSM, POB 912, Beijing 100083, Peoples R China. E-mail: bqsun@red.semi.ac.cn.(2006).Photoinduced spin alignment of the magnetic ions in (Ga,Mn)As.JOURNAL OF APPLIED PHYSICS,100(8),Art.No.083104.
MLA Sun BQ ,et al."Photoinduced spin alignment of the magnetic ions in (Ga,Mn)As".JOURNAL OF APPLIED PHYSICS 100.8(2006):Art.No.083104.
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