Fluid sensitive nanoscale switching with quantum levitation controlled by $\alpha$-Sn/$\beta$-Sn phase transition

Abstract

We analyse the Lifshitz pressure between silica and tin separated by a liquid mixture of bromobenzene and chlorobenzene. We show that the phase transition from semimetallic $\alpha$-Sn to metallic $\beta$-Sn can switch Lifshitz forces from repulsive to attractive. This effect is caused by the difference in dielectric functions of $\alpha$-Sn and $\beta$-Sn, giving both attractive and repulsive contributions to the total Lifshitz pressure at different frequency regions controlled by the composition of the intervening liquid mixture. In this way, one may be able to produce phase transition-controlled quantum levitation in liquid medium.

arXiv comment9 pages, 11 figures (to be published in Phys. Rev. B)

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Cited by in corpus (4)

• Tunable Casimir equilibria with phase change materials: from quantum trapping to its release
• Non-trivial retardation effects in dispersion forces: From anomalous distance dependence to novel traps
• Electrically switchable Casimir forces using transparent conductive oxides
• Beyond Attraction: A Novel Approach to Repulsive Casimir-Lifshitz Forces using heterogeneous off-stoichiometry in gapped metals