Local conductivity of epitaxial Fe-doped SrTiO3 thin films

被引：13

作者：

Kajewski, D. ^{[1
]}

Wrzalik, R. ^{[1
]}

Wojtyniak, M. ^{[1
]}

Pilch, M. ^{[1
]}

Szade, J. ^{[1
]}

Szot, K. ^{[1
,2
]}

Lenser, Ch. ^{[2
]}

Dittmann, R. ^{[2
]}

Waser, R. ^{[2
]}

机构：

[1] Univ Silesia, A Cheikowski Inst Phys, PL-40007 Katowice, Poland

[2] Forschungszentrum Juelich, Inst Solid State Res, D-52425 Julich, Germany

来源：

PHASE TRANSITIONS | 2011年 / 84卷 / 5-6期

关键词：

resistive switching; strontium titanate; local conductivity; perovskites; thin films;

D O I：

10.1080/01411594.2010.551751

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Atomic Force Microscopy (AFM) measurements have been performed for Fe-doped SrTiO3 thin films with an Fe concentration of 1 and 2 at%. Thin films with a thickness of 15-50 nm were grown by pulsed laser deposition on single crystalline SrTi0.99Nb0.01O3 substrates. Low-energy electron diffraction examination showed that the films are single crystalline. The regions treated with the AFM tip (applied dc voltage up to 6 V) showed inhomogeneity of the electrical conductivity. Resistive switching was studied by the use of local conductive atomic force microscopy and was present in all samples. Fe doping was found to influence the character of switching.

引用

页码：483 / 488

页数：6

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