Leakage current of Pt/(Ba0.7Sr0.3)TiO3 interface with dead layer -: art. no. 024106

被引：43

作者：

Chen, B

Yang, H

Miao, J

Zhao, L

Cao, LX

Xu, B

Qiu, XG

Zhao, BR

机构：

[1] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 02期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.1828219

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Leakage current of Pt/(Ba0.7Sr0.3)TiO3 (BST)/YBa2Cu3O7-delta capacitors on a (001) SrTiO3 substrate was studied. By modeling a low-dielectric constant layer, a so-called dead layer, between the Pt/BST interface as a parasitic capacitor in series with the bulk layer capacitor, the leakage current of Pt/BST interface was well analyzed based on the modified Schottky emission equation. Furthermore, a two-step schematic energy band diagram is proposed to explain the carrier transport through the Pt/BST interface. (C) 2005 American Institute of Physics.

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页数：4

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