Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4807796
Title: Tuning the Casimir force via modification of interface properties of three-dimensional topological insulators
Authors: Martinez, J.C. 
Jalil, M.B.A. 
Issue Date: 2013
Source: Martinez, J.C., Jalil, M.B.A. (2013). Tuning the Casimir force via modification of interface properties of three-dimensional topological insulators. Journal of Applied Physics 113 (20) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4807796
Abstract: The axion coupling in topological insulators (TI), which couples electric polarization (magnetization) with the magnetic (electric) field, is known to support a small-distance Casimir repulsion and a large-distance Casimir attraction with a zero-force stable equilibrium between TI plates. By enhancing the reflection properties of the TI interface through mirrors that introduce multiple reflections, we show that it is possible to maintain these trends while tuning the position of the zero-force point and its binding energy: the former by an order of magnitude and latter by over four orders. Moreover, surface charge on the TI allows for intermediate tuning of the zero-force point between coarse settings determined by the axion coupling. © 2013 AIP Publishing LLC.
Source Title: Journal of Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/57723
ISSN: 00218979
DOI: 10.1063/1.4807796
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