Quantum interference and Klein tunnelling in graphene heterojunctions

  title={Quantum interference and Klein tunnelling in graphene heterojunctions},
  author={Andrea F. Young and Philip Kim},
  journal={Nature Physics},
The observation of oscillations in the conductance characteristics of narrow graphene p–n-junctions confirms their ability to collimate ballistic carriers. Moreover, the phase of these oscillations at low magnetic field suggests the occurrence of the perfect transmission of carriers normal to the junction as a direct result of the Klein effect. The observation of quantum conductance oscillations in mesoscopic systems has traditionally required the confinement of the carriers to a phase space of… 
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