Kinetic Monte Carlo simulations of optimization of self-assembly quantum rings growth strategy based on substrate engineering  

作　　者：刘建涛 冯昊 俞重远 刘玉敏 石强 宋鑫 张文 彭益炜 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications)

出　　处：《Chinese Physics B》2013年第4期382-388,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 60908028 and 60971068);the Program for New Century Excellent Talentsin University, China (Grant No. NTCE-10-0261);the Chinese Universities Science Fund (Grant No. 2011RC0402)

摘　　要：In this paper, the kinetic Monte Carlo simulations of the self-assembly quantum rings （QRs） based on the substrate engineering, which is related to the eventual shape of the formed quantum ring, are implemented. According to the simulation results, the availability of the QR with tunable size and the formation of smooth shape on the ideal flat substrate are checked. Through designing the substrate engineering, i.e., changing the depth, the separation and the ratio between the radius and the height of the embedded inclusions, the position and size of QR can be controlled and eventually the growth strategy of optimizing the self-assembly QRs is accomplished.In this paper, the kinetic Monte Carlo simulations of the self-assembly quantum rings （QRs） based on the substrate engineering, which is related to the eventual shape of the formed quantum ring, are implemented. According to the simulation results, the availability of the QR with tunable size and the formation of smooth shape on the ideal flat substrate are checked. Through designing the substrate engineering, i.e., changing the depth, the separation and the ratio between the radius and the height of the embedded inclusions, the position and size of QR can be controlled and eventually the growth strategy of optimizing the self-assembly QRs is accomplished.

关 键 词：quantum rings kinetic Monte Carlo SELF-ASSEMBLY substrate engineering 

分 类 号：O413[理学—理论物理] O242.2[理学—物理]