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arXiv 1212.0907cond-mat.mes-hall
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金属纳米结构中的表面等离子体激元和场电子发射

Surface Plasmons and Field Electron Emission In Metal Nanostructures

Nicolas Garcia, Ming Bai

摘要:

在本文中,我们讨论了由于金属纳米结构,特别是金属顶部的纳米球的表面等离子体共振的场增强,并发现最大场增强的数量级为10^2,强度增强的数量级为10^4。自然地,这些场可以产生电子的场发射的0.5V/V量级的时间场。虽然我们计算的场增强比最近的实验报道的小10倍,我们的结果很好地解释了实验数据。非常大的原子场使完全发射离子的系统不稳定,至少对于静态场是这样,并且产生电击穿。在任何情况下,我们证明,这些数据是惊人的,可以解决问题,在提供稳定的电流的静态场,未来的实验应该做,以获得脉冲电子束。

英文摘要:

In this paper we discuss the field enhancement due to surface plasmons resonances of metallic nanostructures, in particular nano spheres on top of a metal, and find maximum field enhancement of the order of 10^2, intensities enhancement of the order of 10^4. Naturally these fields can produce temporal fields of the order of 0.5V/Å that yield field emission of electrons. Although the fields enhancements we calculated are factor of 10 smaller than those reported in recent experiments, our results explain very well the experimental data. Very large atomic fields destabilize the system completely emitting ions, at least for static field, and produce electric breakdown. In any case, we prove that the data are striking and can solve problems in providing stabilized current of static fields for which future experiments should be done for obtaining pulsed beams of electrons.

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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