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Non-Debye Charge Screening and Adsorbed-Ion-Induced Anchoring Transition in a Nematic Liquid Crystal

 

作者: V.G. Nazarenko,   V.M. Pergamenshchik,   O.V. Koval'chuk,   B.I. Lev,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 2000）
卷期: Volume 352, issue 1  

页码: 1-8

 

ISSN:1058-725X

 

年代: 2000

 

DOI:10.1080/10587250008023155

 

出版商: Taylor & Francis Group

 

关键词: ions;adsorption;screening;anchoring

 

数据来源: Taylor

 

摘要:

Anchoring transition mechanism due to substrate-adsorbed ions is studied. It is shown that the surface field is screened by a very dense charged subsurface layer whose thickness λSis much smaller than the Debye length λD. It is shown both theoretically and experimentally that critical temperature of the transition can be controlled by bulk ion density through its relation to the density of adsorbed ions.

 

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