Absorptive pinhole collimators for ballistic Dirac fermions in graphene

Shaping and guiding the flow of ballistic electrons is at the core of electron optics; however in graphene this is hindered by chiral tunneling. Here, the authors experimentally demonstrate an electron collimator based on hBN-encapsulated ballistic graphene, capable of emitting narrow electron beams...

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Autores principales: Arthur W. Barnard, Alex Hughes, Aaron L. Sharpe, Kenji Watanabe, Takashi Taniguchi, David Goldhaber-Gordon
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/89e9e124379a4223b2a49f8f3a109ab3
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