Casimir Physics by Diego Dalvit Peter Milonni David Roberts & Felipe da Rosa

Author:Diego Dalvit, Peter Milonni, David Roberts & Felipe da Rosa
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

7.3.1 Inclusion of the Debye Screening Length?

In the early calibrations of our Ge plate Casimir experiment [45], we had a long-range background force that depended on distance not quite as 1/d, as described above. Our initial guess was that there was a distance offset in our calibrations due to penetration into the plates of the calibration electric field. The problem is that a quasi-static electric field can propagate a finite distance into a semiconductor (see, e.g., [47]); this distance is determined by the combined consideration of diffusion and field driven electric currents, leading to an effective field penetration length (Debye–Hückel length)

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