Disentangling the Effects of Shape and Dielectric Response in van der Waals Interactions between Anisotropic Bodies
| Autor: | Roger H. French, V. Adrian Parsegian, Jaime C. Hopkins, Rudolf Podgornik, Wai-Yim Ching |
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| Rok vydání: | 2015 |
| Předmět: |
Condensed matter physics
Chemistry Isotropy Composite media Dielectric response Surfaces Coatings and Films Electronic Optical and Magnetic Materials Cylinder (engine) law.invention symbols.namesake General Energy law symbols Angular dependence Physical and Theoretical Chemistry van der Waals force Anisotropy Continuum hypothesis |
| Zdroj: | The Journal of Physical Chemistry C. 119:19083-19094 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.5b01870 |
| Popis: | The free energies, forces, and torques for all separations and mutual orientations are formulated in the full Lifshitz continuum theory of van der Waals interactions. Angular dependence of interactions is characterized for three different interaction geometries of bodies with morphological and/or material anisotropy, interacting across an isotropic aqueous medium: two infinite half-spaces; two half-spaces of composite media comprising parallel cylinder arrays; and an isolated pair of long, thin cylinders. The contributions to van der Waals interaction energy due to shape anisotropy and material anisotropy are isolated in detailed calculations and examined. Surprisingly, the effect of shape on interactions in the retarded regime results in a torque between arrays of cylinders that is stronger than that between half-spaces. |
| Databáze: | OpenAIRE |
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