Full transmission within a wide energy range and super-criticality in relativistic barrier scattering

Abstract

For potential barriers with scalar and vector coupling, we show that a Dirac particle could experience nearly full transmission within a wide sub-barrier energy band. Moreover, for certain potential configurations, including pseudo-spin symmetry where the scalar potential is the negative of the vector, full transmission occurs for arbitrarily small momentum.

10 pages, 4 figures, 1 table, 1 video animation

References in corpus (4)

• The electronic properties of graphene
• Chiral tunneling and the Klein paradox in graphene
• Klein tunneling in graphene: optics with massless electrons
• Resonant states in an attractive one dimensional cusp potential