Space charge limited transient currents and oxygen vacancy mobility in amorphous BaTiO3 thin films

被引：27

作者：

El Kamel, F.

Gonon, P.

Ortega, L.

Jomni, F.

Yangui, B.

机构：

[1] CNRS, LEMD, F-38042 Grenoble 9, France

[2] Univ Grenoble 1, F-38042 Grenoble 9, France

[3] CNRS, French Natl Res Ctr, Crystallog Lab, F-38042 Grenoble 9, France

[4] LabMOP, Tunis, Tunisia

来源：

JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 09期

关键词：

D O I：

10.1063/1.2196112

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Time-dependent transient currents were studied at elevated temperatures (200-220 degrees C) in amorphous barium titanate thin film capacitors. Current transients display a peak whose time position varies with applied voltage and temperature. The response is analyzed through space charge limited current transient theories. Extracted drift mobilities are in the 10(-11)-10(-12) cm(2) V-1 s(-1) range and show an activation energy of 1 eV. The phenomena are associated with oxygen vacancies migration in BaTiO3. (C) 2006 American Institute of Physics.

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页数：5

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