量子尺寸效应对超薄Pb(111)薄膜性质的影响  

Influence of the Quantum Size Effects on Properties of the Ultrathin Pb(111) Film

作　　者：李金铭[1,2] 王建军[1] 贾瑜[1] 

机构地区：[1]郑州大学物理工程学院,河南郑州450001 [2]河南教育学院物理系,河南郑州450014

出　　处：《郑州大学学报（理学版）》2010年第1期103-111,共9页Journal of Zhengzhou University:Natural Science Edition

基　　金：国家自然科学基金资助项目;编号10574113;10974182

摘　　要：讨论了超薄Pb(111)薄膜在构型和稳定性方面的量子机制.首先对量子尺寸效应和电子生长以及薄膜稳定性的判断标准作了介绍,然后以Pb(111)薄膜作为例子,介绍了其生长的特性和强烈的量子尺寸效应,最后阐述了量子尺寸效应对薄膜的物理和化学性质具有深刻影响.Quantum mechanical features of the formation and stability for the ultrathin Pb（111） films are discussed. Quantum size effects and the electronic growth have been investigated, as well as criteria for judging stability of ultrathin metal films. Through the study of the growth characteristics and strong quantum size effect for Pb（111） thin film, it reveals the consequences of size quantization effects on the physical, and chemical properties of the films are profound.

关 键 词：量子尺寸效应 费米能级 密度泛函 弛豫 

分 类 号：O469[理学—凝聚态物理]