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arXiv 2302.00865quant-phcond-mat.mes-hall
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金与薄磁电介质板之间增强的排斥性卡西米尔力

Enhanced repulsive Casimir forces between gold and thin magnetodielectric plates

Calum Shelden, Benjamin Spreng, Jeremy N. Munday

AI总结:

本研究计算金属与磁性板间的排斥卡西米尔力,探究板厚、低频电磁参数及温度的调控作用,发现薄磁板满足μ(0)≥ε(0)时存在排斥力,可实现亚微米间距排斥,有望用现有高分辨率技术测量。

摘要:

我们计算了金属板与磁性板之间的排斥性卡西米尔力,并定量探究了磁性板的属性作为排斥力调节旋钮的作用,具体包括板的厚度及其低频介电常数和磁导率。对于厚度≤10 nm的薄磁性板,我们发现只要μ(0) ≥ ε(0),排斥力就可以存在。我们还探究了温度对排斥力以及吸引与排斥相互作用之间转变距离的影响。我们展示了如何调节这些参数以实现在亚微米间距范围内的排斥作用,这使得该效应有望通过使用磁性范德瓦尔斯材料的现有高分辨率测量技术进行观测。

英文摘要:

We calculate repulsive Casimir forces between metallic and magnetic plates and quantitatively probe the magnetic plate's properties as tuning knobs for the repulsion. Namely, the plate's thickness and its low-frequency permittivity and permeability. For a thin magnetic plate ($\leq 10\,\text{nm}$), we find that repulsion can exist as long as $μ(0) \geq ε(0)$. We also explore the effect of temperature on the repulsion and transition distance between attractive and repulsive interactions. We show how the parameters can be tuned to allow repulsion at sub-micron separation regimes, making it potentially accessible to known high-resolution measurement techniques using magnetic van der Waals materials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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