Electrode-dependent electrical properties of metal/Nb-doped SrTiO3 junctions

被引：109

作者：

Park, C. ^{[1
]}

Seo, Y. ^{[1
]}

Jung, J. ^{[1
]}

Kim, D. -W. ^{[2
,3
]}

机构：

[1] Hanyang Univ, Dept Appl Phys, Ansan 426791, Kyunggi Do, South Korea

[2] Ewha Womans Univ, Div Nano Sci, Seoul 120780, South Korea

[3] Ewha Womans Univ, Dept Phys, Seoul 120780, South Korea

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

D O I：

10.1063/1.2872707

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this study, we discuss the electrical properties of junctions consisting of metal electrodes and Nb-doped SrTiO3(001) single crystals. The junctions formed with large work function metals (Ni, Au, Pd, and Pt) resulted in rectifying transport. A hysteretic feature was observed in the current (I)-voltage (V) and capacitance (C)-V characteristics of these junctions upon polarity reversal. The ideal Schottky-Mott rule could not explain the barrier height obtained from the I-V data, indicating the existence of interface states. Analyses of the C-V data revealed that a low dielectric constant layer existed at the interface. The interface states and layers affected the transport and the related resistance switching characteristics of the junctions. (c) 2008 American Institute of Physics.

引用

页数：4

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