Corpus ID: 119199204

Fermionic Lensing in Smooth Graphene P-N Junctions

@article{Phong2016FermionicLI,
  title={Fermionic Lensing in Smooth Graphene P-N Junctions},
  author={V{\~o} Tiến Phong and Jiantao Kong},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2016}
}
Focusing of electron waves in graphene p-n junctions is a striking manifestation of fermionic negative refraction. We analyze lensing in smooth p-n junctions and find that it differs in several interesting ways from that in the previously studied sharp p-n junctions. Most importantly, while the overall negative-refraction behavior remains unchanged, the image at the focal point undergoes additional broadening due to Klein tunneling in the junction. We develop a theory of image broadening and… Expand

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