Nanoferroelectric domains in ultrathin BaTiO3 films

被引：40

作者：

Drezner, Y ^{[1
]}

Berger, S ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Fac Mat Engn, IL-32000 Haifa, Israel

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 94卷 / 10期

关键词：

D O I：

10.1063/1.1618939

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The microstructure and electrical properties of ultrathin BaTiO3 films (2-7 nm thick) have been studied. Multidomain structures having 180degrees domains and 90degrees domain boundaries were observed by high resolution transmission electron microscopy. The domains, which have a width as small as one unit cell, are mostly oriented in parallel to the film plane. The film exhibits ferroelectric behavior characterized by polarization hysteresis loops and Curie temperature. The leakage current, switching time, and fatigue characteristics of the films are also reported. (C) 2003 American Institute of Physics.

引用

页码：6774 / 6778

页数：5

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