Snell's law for surface electrons: Refraction of an electron gas imaged in real space

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On NaCl(100)/Cu(111) an interface state band is observed that descends from the surface-state band of the clean copper surface. This band exhibits a Moire-pattern-induced one-dimensional band gap, which is accompanied by strong standing-wave patterns, as revealed in low-temperature scanning tunneling microscopy images. At NaCl island step edges, one can directly see the refraction of these standing waves, which obey Snell's refraction law.
4 pages, 4 figures

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/22717

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0311415
 http://arxiv.org/abs/cond-mat/0311415
 Phys. Rev. Lett. 92, 036803 (2004).
 doi:10.1103/PhysRevLett.92.036803

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arXiv