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Application of nickel alloy electrode to characterization of crystal oriented PbTiO3thin films

 

作者: Toshio Ogawa,  

 

期刊: Integrated Ferroelectrics  (Taylor Available online 1992)
卷期: Volume 1, issue 1  

页码: 99-110

 

ISSN:1058-4587

 

年代: 1992

 

DOI:10.1080/10584589208215568

 

出版商: Taylor & Francis Group

 

关键词: nickel alloy electrode;PbTiO3thin film;rf magnetron sputtering;crystal orientation;D-E hysteresis

 

数据来源: Taylor

 

摘要:

A new electrode material made of nickel alloy has been developed that can be used in place of platinum electrodes, which have commonly been utilized in conjunction with PbTiO3and Pb(Zr, Ti)O3thin films. This alloy electrode is composed of nickel, chromium, iron and aluminium. When heated in an oxidation atmosphere, an alumina film layer is generated on the surface of the alloy that prevents the electrode from oxidizing and reacting with PbO. The remanent polarization of the PbTiO3film on the alloy electrode oriented in the (111) direction was 25 μC/cm2, a value which is approximately equal to that of ceramics. The breakdown strength of the film reached the relatively large value of 190 kV/cm at room temperature. In addition, the as-grown film was already polarized with a degree of polarization estimated to be half that of fully polarized bulk ceramics.

 

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