Transport Properties of Surface-Modulated Gold Atomic-Chains and Nanofilms： Ab initio Calculations  

作　　者：赵尚骞 吕燕 吕文刚 梁文杰 王恩哥 

机构地区：[1]Institute of Physics, and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100190 [2]international Center for Quantum Materials, School of Physics, Peking University, Beijing 100871

出　　处：《Chinese Physics Letters》2014年第6期167-170,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10834012 and 11374342, the National Basic Research Program of China under Grant No 2009CB930700, and the Knowledge Innovation Program of the Chinese Academy of Sciences under Grant No KJCX2-YW-W35.

摘　　要：Transport properties of gold atomic-chains and nanofilms under surface modulation are studied by performing self-consistent first-principle calculations. Quantum conducting channels of gold atomic-chains with absorbing atoms can be partly transparent or even blocked for certain injecting energies. Conductances of gold nanofilms with ridges show great dependence on their structures. We demonstrate that the transport properties of gold atomic-chains and nanofilms can be engineered through surface modulation, which may be helpful for designing low-dimensional nanodeviees.Transport properties of gold atomic-chains and nanofilms under surface modulation are studied by performing self-consistent first-principle calculations. Quantum conducting channels of gold atomic-chains with absorbing atoms can be partly transparent or even blocked for certain injecting energies. Conductances of gold nanofilms with ridges show great dependence on their structures. We demonstrate that the transport properties of gold atomic-chains and nanofilms can be engineered through surface modulation, which may be helpful for designing low-dimensional nanodeviees.

分 类 号：TB383[一般工业技术—材料科学与工程] TB91[一般工业技术—计量学]