Multilayers and superlattices of ferroelectric barium strontium titanate

被引：13

作者：

Jaakola, I. ^{[1
]}

Levoska, J. ^{[1
]}

Tyunina, M. ^{[1
]}

机构：

[1] Univ Oulu, Microelect & Mat Phys Labs, FI-90014 Oulu, Finland

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 102卷 / 01期

关键词：

D O I：

10.1063/1.2752789

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial multilayers and superlattices of Ba0.8Sr0.2TiO3 and Ba0.4Sr0.6TiO3 were grown by pulsed laser deposition on MgO substrates using a La0.5Sr0.5CoO3 bottom electrode. The epitaxial relations, crystal perfection, and strains were studied by x-ray diffraction at room temperature. Pseudomorphic growth of superlattices was demonstrated for the period as large as 62 unit cells. The obtained in-plane strain was consistent with that theoretically expected. Low-frequency functionality was found to depend on strain, period, and amount and quality of interfaces. (c) 2007 American Institute of Physics.

引用

页数：6

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