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Surface inhomogeneities and coercive field of thin ferroelectric films

 

作者: N.I. Lebedev,   A.S. Sigov,  

 

期刊: Integrated Ferroelectrics  （Taylor Available online 1994）
卷期: Volume 4, issue 1  

页码: 21-24

 

ISSN:1058-4587

 

年代: 1994

 

DOI:10.1080/10584589408018656

 

出版商: Taylor & Francis Group

 

关键词: thin ferroelectric films;coercive field;surface inhomogeneities

 

数据来源: Taylor

 

摘要:

We calculate the coercive field of thin ferroelectric films caused by the domain wall pinning by surface inhomogeneities. The Joanny-De Gennes formula is generalized to the elastic energy of the line of intersection of the domain wall with the surface of ferroelectrics. The coercive field induced by the pinning is shown to be inversely related to the film thickness and to have a magnitude of the order of that observed in experiments.

 

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