Femtosecond laser-induced crystallization of amorphous Sb2Te3 film and coherent phonon spectroscopy characterization and optical injection of electron spins
Femtosecond laser-induced crystallization of amorphous Sb2Te3 film and coherent phonon spectroscopy characterization and optical injection of electron spins
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非晶 Sb2Te3 薄膜飞秒激光诱导结晶及相干声子光谱表征和电子自旋光注入
DOI:
10.1063/1.3633228
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发表时间:
2011-09
影响因子:
3.2
通讯作者:
Yiqun Wu
中科院分区:
文献类型:
--
作者:
Ke Chen;Wenfang Wang;Huan Huang;Daoxin Yao;Yang Wang;Fuxi Gan;Tianshu Lai;Simian Li;Weiling Zhu;Yiqun Wu
A femtosecond laser-irradiated crystallizing technique is tried to convert amorphous Sb2Te3 film into crystalline film. Sensitive coherent phonon spectroscopy (CPS) is used to monitor the crystallization of amorphous Sb2Te3 film at the original irradiation site. The CPS reveals that the vibration strength of two phonon modes that correspond to the characteristic phonon modes (A1g1 and Eg) of crystalline Sb2Te3 enhances with increasing laser irradiation fluence (LIF), showing the rise of the degree of crystallization with LIF and that femtosecond laser irradiation is a good post-treatment technique. Time-resolved circularly polarized pump-probe spectroscopy is used to investigate electron spin relaxation dynamics of the laser-induced crystallized Sb2Te3 film. Spin relaxation process indeed is observed, confirming the theoretical predictions on the validity of spin-dependent optical transition selection rule and the feasibility of transient spin-grating-based optical detection scheme of spin-plasmon collect...
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DOI:
10.1021/cg7011815
发表时间:
2008-11
期刊:
Cryst. Growth Des.
影响因子:
--
作者:
Bo Zhou;Yu-Fei Yang;Jun-Jie Zhu;Yong Ji;Xing-Hua Li
通讯作者:
Xing-Hua Li
影响因子:
2.8
作者:
S. M. Souza;D. M. Trichês;J. C. Lima;T. A. Grandi;R. S. Biasi
通讯作者:
S. M. Souza;D. M. Trichês;J. C. Lima;T. A. Grandi;R. S. Biasi
DOI:
10.1209/0295-5075/84/27006
发表时间:
2008-06
期刊:
EPL (Europhysics Letters)
影响因子:
--
作者:
L. Teng;P. Zhang;T. Lai;M. W. Wu
通讯作者:
L. Teng;P. Zhang;T. Lai;M. W. Wu
影响因子:
8.6
作者:
Raghu, S.;Chung, Suk Bum;Zhang, Shou-Cheng
通讯作者:
Zhang, Shou-Cheng
影响因子:
3.7
作者:
Guo-feng Wang;T. Çagin
通讯作者:
Guo-feng Wang;T. Çagin