Reversible modulation of electric transport properties by oxygen absorption and releasing on Nb:SrTiO3 surface

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Reversible modulation of electric transport properties by oxygen absorption and releasing on Nb:SrTiO3 surface
	Lu, HX ; Liu, YB ; Chen, YS ; Wang, J ; Shen, BG ; Sun, JR
刊名	JOURNAL OF APPLIED PHYSICS
	2014
卷号	116 期号:17
ISSN号	0021-8979
通讯作者	Chen, YS (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Pt Schottky contacts on (001)-orientated Nb-doped SrTiO3 (NSTO) in both ambient air and vacuum were investigated by the conductive atomic force microscope. The co-existed TiO2 and SrO termination layers were identified on the terrace-structured NSTO surface, where the former possessed a higher forward current than the latter. In ambient air, the barrier height of Pt/NSTO Schottky junction exhibited periodical variation with cyclic terrace plane and step sites, whereas it became homogeneous in ambient vacuum. We suggested that the oxygen absorption and releasing of surface dangling bonds were the origin for reversible changes in transport properties, which indicates a feasible approach for the surface modulation and band structure tailoring of NSTO based heterojunctions. (C) 2014 AIP Publishing LLC.
资助信息	National Basic Research of China; National Natural Science Foundation of China
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59133]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Lu, HX,Liu, YB,Chen, YS,et al. Reversible modulation of electric transport properties by oxygen absorption and releasing on Nb:SrTiO3 surface[J]. JOURNAL OF APPLIED PHYSICS,2014,116(17).
APA	Lu, HX,Liu, YB,Chen, YS,Wang, J,Shen, BG,&Sun, JR.(2014).Reversible modulation of electric transport properties by oxygen absorption and releasing on Nb:SrTiO3 surface.JOURNAL OF APPLIED PHYSICS,116(17).
MLA	Lu, HX,et al."Reversible modulation of electric transport properties by oxygen absorption and releasing on Nb:SrTiO3 surface".JOURNAL OF APPLIED PHYSICS 116.17(2014).