Caustics due to Negative Refractive Index in Circular Graphene p-n Junctions

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We show that the wavefunctions form caustics in circular graphene p-n junctions which in the framework of geometrical optics can be interpreted with negative refractive index.
4 pages, 5 figures

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/143956

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4034
 http://arxiv.org/abs/0706.4034
 Phys. Rev. Lett. 99, 246801 (2007)
 doi:10.1103/PhysRevLett.99.246801

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arXiv