Tailoring the electronic properties of SrRuO3 films in SrRuO3/LaAlO3 superlattices

被引：19

作者：

Liu, Z. Q. ^{[1
,2
]}

Ming, Y. ^{[2
]}

Lu, W. M. ^{[1
,3
]}

Huang, Z. ^{[1
]}

Wang, X. ^{[1
,2
]}

Zhang, B. M. ^{[1
,4
]}

Li, C. J. ^{[1
,5
]}

Gopinadhan, K. ^{[1
,3
]}

Zeng, S. W. ^{[1
,2
]}

Annadi, A. ^{[1
,2
]}

Feng, Y. P. ^{[1
]}

Venkatesan, T. ^{[1
,2
,3
]}

Ariando ^{[1
,2
]}

机构：

[1] Natl Univ Singapore, NUSNNI Nanocore, Singapore 117411, Singapore

[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[3] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117542, Singapore

[4] Natl Univ Singapore, Dept Mat Sci Engn, Singapore 117576, Singapore

[5] Natl Univ Singapore, Grad Sch Integrat Sci & Engn, Singapore 117456, Singapore

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 22期

基金：

新加坡国家研究基金会;

关键词：

EPITAXIAL THIN-FILMS; TRANSPORT-PROPERTIES; SR1-XCAXRUO3; TRANSITION; OXIDES; GAS;

D O I：

10.1063/1.4768230

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electronic properties of SrRuO3/LaAlO3 (SRO/LAO) superlattices with different interlayer thicknesses of SRO layers were studied. As the thickness of SRO layers is reduced, the superlattices exhibit a metal-insulator transition implying transformation into a more localized state from its original bulk metallic state. The strain effect on the metal-insulator transition was also examined. The origin of the metal-insulator transition in ultrathin SRO film is discussed. All the superlattices, even those with SRO layers as thin as 2 unit cells, are ferromagnetic at low temperatures. Moreover, we demonstrate field effect devices based on such multilayer superlattice structures. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768230]

引用

页数：5

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