Laser-Induced Distortions and Disturbance Propagation of Delocalized Electronic States in Monatomic Carbon Chains  

作　　者：YANG Gong-Xian GONG Xiu-Fang 杨功显;巩秀芳(School of Materials Science and Engineering,Xi’an University of Technology,Xi’an 710048;Dongfang Turbine Co.,Ltd,Deyang 618000)

机构地区：[1]School of Materials Science and Engineering,Xi’an University of Technology,Xi’an 710048 [2]Dongfang Turbine Co.,Ltd,Deyang 618000

出　　处：《Chinese Physics Letters》2012年第6期219-222,共4页中国物理快报（英文版）

摘　　要：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 ofabout 106 m/s at 0 K,and this velocity is weakened at room temperature due to the localization effect of thermal fluctuation.

关 键 词：PUMPED CHAINS ATOMIC 

分 类 号：TN2[电子电信—物理电子学]