Impact of Surface Dipole on Resonant Electron Injection in Scanning Tunneling Spectroscopy

CORC > 厦门大学 > 物理技术－已发表论文

	Impact of Surface Dipole on Resonant Electron Injection in Scanning Tunneling Spectroscopy
	Wu, Qi-hui ; Wu, Shun-qing ; Pakes, C. I. ; Wu SQ(吴顺情)
刊名	http://dx.doi.org/10.1063/1674-0068/26/04/393-397
	2013
关键词	SI(111)-7X7 SURFACE STM INTERFEROMETRY DEPENDENCE FILMS
英文摘要	Australia Research Council; Quanzhou Normal University; Resonant electron injection and first-principles calculations are utilized to study single-adsorbed selenium (Se) atom on a Si(111)-7x7 surface. Theoretical calculations indicate that a negative dipole of 0.61 eV forms toward the adsorbed Se atom due to electron transfer from the associated Si atoms. The formation of surface dipole modifies the effective tunneling barrier height and causes a shift in the energy of the resonant state formed in the vacuum gap between the tip and the sample surface. The experimental data imply that an outward negative surface dipole of 0.61 eV causes a resonant electron injection bias shift to high voltage of about 0.45 V.
语种	英语
出版者	CHINESE PHYSICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91853]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Wu, Qi-hui,Wu, Shun-qing,Pakes, C. I.,et al. Impact of Surface Dipole on Resonant Electron Injection in Scanning Tunneling Spectroscopy[J]. http://dx.doi.org/10.1063/1674-0068/26/04/393-397,2013.
APA	Wu, Qi-hui,Wu, Shun-qing,Pakes, C. I.,&吴顺情.(2013).Impact of Surface Dipole on Resonant Electron Injection in Scanning Tunneling Spectroscopy.http://dx.doi.org/10.1063/1674-0068/26/04/393-397.
MLA	Wu, Qi-hui,et al."Impact of Surface Dipole on Resonant Electron Injection in Scanning Tunneling Spectroscopy".http://dx.doi.org/10.1063/1674-0068/26/04/393-397 (2013).