Field-induced formation of nanometer-sized water bridges -: art. no. 056101

被引:128
作者
Gómez-Moñivas, S
Sáenz, JJ
Calleja, M
García, R
机构
[1] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain
[2] Univ Autonoma Madrid, Inst Nicolas Cabrera, E-28049 Madrid, Spain
[3] CSIC, Inst Microelect Madrid, E-28760 Madrid, Spain
关键词
D O I
10.1103/PhysRevLett.91.056101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A method to form and manipulate the properties of nanometer-size liquid bridges by an external electric field is discussed. The properties of bridges are shown to be the result of an interplay among the field-induced polarization of the water layer adsorbed on the surface, the surface energy, and the water condensation from the humid air. For a given tip-sample separation, a simple model predicts the existence of a threshold voltage V-th to form the bridge in full agreement with experiments.
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页数:4
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