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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