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On the van der waals energy of two half-spaces at small separations

โœ Scribed by R.G. Barrera; E. Gerlach

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
181 KB
Volume
25
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

It is shown that the introduction of a cut-off wavenumber corresponding to electron-hole excitations leads to a 10% reduction of the Lifshitz van der Waals attraction of low density metallichalf-spaces at small separations.

In order to explain experiments on the adhesion of solid particles in terms of van der Waals forces, the Lifshitz formula [I ] has been assumed to be valid for extremely small separations [2] (about 4 A). In this range; however, the lattice structure and the overlap width d U(d) KC 0)

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