Laser-Induced Distortions and Disturbance Propagation of Delocalized Electronic States in Monatomic Carbon Chains
YANG Gong-Xian1,2 , GONG Xiu-Fang2*
1 School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048 2 Dongfang Turbine Co., Ltd, Deyang 618000,
Laser-Induced Distortions and Disturbance Propagation of Delocalized Electronic States in Monatomic Carbon Chains
YANG Gong-Xian1,2 , GONG Xiu-Fang2*
1 School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048 2 Dongfang Turbine Co., Ltd, Deyang 618000,
Abstract ：Tight-binding electron-ion dynamics of carbon chains pumped by intense laser pulses are performed to study the interactions between monatomic carbon chains and lasers. Laser-induced distortions of carbon chains, which are enhanced by a long wavelength laser, are investigated. The carbon chains with a strong laser beam focused on one terminal are simulated to study the disturbance of electronic states. By the superposition of delocalized π band states, the disturbance propagates from the illuminated area to the non-illuminated area in a velocity of about 106 m/s at 0 K, and this velocity is weakened at room temperature due to the localization effect of thermal fluctuation.
Key words ：
61.46.Km
81.05.Uw
31.15.Ar
收稿日期: 2011-08-30
出版日期: 2012-05-31
:
61.46.Km
(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
81.05.Uw
31.15.Ar
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