Anomalous Temperature Dependence of the Casimir Force for Thin Metal Films

V. A. Yampol'skii, Sergey Savel'ev, Z. A. Mayselis, S. S. Apostolov, Franco Nori
2008 Physical Review Letters  
Within the framework of the Drude dispersive model, we predict an unusual non-monotonous temperature dependence of the Casimir force for thin metal films. For certain conditions, this force decreases with temperature due to the decrease of the metallic conductivity, whereas the force increases at high temperatures due to the increase of the thermal radiation pressure. We consider the attraction of a film to: either (i) a bulk ideal metal with a planar boundary, or (ii) a bulk metal sphere
more » ... . The experimental observation of the predicted non-monotonous temperature dependence of the Casimir force can put an end to the long-standing discussion on the role of the electron relaxation in the Casimir effect.
doi:10.1103/physrevlett.101.096803 pmid:18851637 fatcat:gch5v3xztvhq5fsfc233kftyly