BiFeO3 thin films:: Novel effects

被引：80

作者：

Palkar, VR ^{[1
]}

Pinto, R ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

PRAMANA-JOURNAL OF PHYSICS | 2002年 / 58卷 / 5-6期

关键词：

magnetoelectric materials; thin films; ferroelectricity; dielectric anomaly; domains;

D O I：

10.1007/s12043-002-0207-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we report synthesis of phase-pure highly resistive magnetoelectric BiFeO3 thin films on Pt/TiO2/SiO2/Si substrate by using pulsed laser deposition technique. For the first time saturated ferroelectric hysteresis loop has been observed. It has confirmed the presence of ferro-electricity in BiFeO3 compound. The films exhibit dielectric anomaly near Neel temperature. This anomaly is related to the influence of vanishing magnetic order on the electric order. In situ domain alignment occurs during observation of the films under transmission electron microscope.

引用

页码：1003 / 1008

页数：6

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