Step Terrace Tuned Anisotropic Transport Properties of Highly Epitaxial LaBaCo2O5.5+delta Thin Films on Vicinal SrTiO3 Substrates

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	Step Terrace Tuned Anisotropic Transport Properties of Highly Epitaxial LaBaCo2O5.5+delta Thin Films on Vicinal SrTiO3 Substrates
	Zou, Q ; Liu, M ; Wang, GQ ; Lu, HL ; Yang, TZ ; Guo, HM ; Ma, CR ; Xu, X ; Zhang, MH ; Jiang, JC ; Meletis, EI ; Lin, Y ; Gao, HJ ; Chen, CL
刊名	ACS APPLIED MATERIALS & INTERFACES
	2014
卷号	6 期号:9 页码:6704
关键词	LBCO STO miscut substrate step terrace induced strain anisotropic properties small polaron
ISSN号	1944-8244
通讯作者	Guo, HM (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Highly epitaidal LaBaCo2O5.5+delta (LBCO) thin films were grown on different miscut (001) SrTiO3 substrates (miscut angle of 0.50 degrees, 3.0 degrees, and 5.0 degrees) to study the substrate surface step terrace effect on the in-plane electrical transport properties. The microstructure studies by X-ray diffraction and transmission electron microscopy indicate that the as-grown films are A-site disordered cubic perovskite structures with the c-axis highly oriented along the film growth direction. The four-probe scanning tunneling microscopy (STM) studies show that the LBCO thin films grown on the vicinal SrTiO3 substrates have a typical semiconductor behavior with the substrate surface terrace step inducing anisotropic electronic transport properties. These results indicate that in highly epitaxial thin films the surface terrace step induced local strains can play an important role in controlling the electronic transport properties and the anisotropic nature.
资助信息	National Science Foundation of China [61274011, 51210003, 11329402, 51202185]; National "973" projects of China [2013CB932901, 2010CB923004, 2011CB932700]; Chinese Academy of Sciences; SSC; US National Science Foundation [NSF-NIRT-0709293]; Department of Energy [DE-FE0003780]
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/311004/58784]
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	Zou, Q,Liu, M,Wang, GQ,et al. Step Terrace Tuned Anisotropic Transport Properties of Highly Epitaxial LaBaCo2O5.5+delta Thin Films on Vicinal SrTiO3 Substrates[J]. ACS APPLIED MATERIALS & INTERFACES,2014,6(9):6704.
APA	Zou, Q.,Liu, M.,Wang, GQ.,Lu, HL.,Yang, TZ.,...&Chen, CL.(2014).Step Terrace Tuned Anisotropic Transport Properties of Highly Epitaxial LaBaCo2O5.5+delta Thin Films on Vicinal SrTiO3 Substrates.ACS APPLIED MATERIALS & INTERFACES,6(9),6704.
MLA	Zou, Q,et al."Step Terrace Tuned Anisotropic Transport Properties of Highly Epitaxial LaBaCo2O5.5+delta Thin Films on Vicinal SrTiO3 Substrates".ACS APPLIED MATERIALS & INTERFACES 6.9(2014):6704.