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Confined states and direction-dependent transmission in graphene quantum wells | | J. Milton Pereira Jr.
; V. Mlinar
; F. M. Peeters
; P. Vasilopoulos
; | | Date: |
21 Jun 2006 | | Subject: | Materials Science | | 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. | | Source: | arXiv, cond-mat/0606558 | | Services: | Forum | Review | PDF | Favorites | |
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