Confined states and direction-dependent transmission in graphene quantum wells
Materials Science
2007-05-23 v1
Abstract
We report the existence of confined massless fermion states in a graphene quantum well (QW) by means of analytical and numerical calculations. These states show an unusual quasi-linear dependence on the momentum parallel to the QW: their number depends on the wavevector and is constrained by electron-hole conversion in the barrier regions. An essential difference with non-relativistic electron states is a mixing between free and confined states at the edges of the free-particle continua, demonstrated by the direction-dependent resonant transmission across a potential well.
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Cite
@article{arxiv.cond-mat/0606558,
title = {Confined states and direction-dependent transmission in graphene quantum wells},
author = {J. Milton Pereira and V. Mlinar and F. M. Peeters and P. Vasilopoulos},
journal= {arXiv preprint arXiv:cond-mat/0606558},
year = {2007}
}
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