dc.contributor.author | Hartmann, Richard R. | |
dc.contributor.author | Portnoi, M.E. | |
dc.date.accessioned | 2014-03-20T11:50:44Z | |
dc.date.issued | 2014-01-02 | |
dc.description.abstract | We analyze bound modes of two-dimensional massless Dirac fermions confined within a hyperbolic secant potential, which provides a good fit for potential profiles of existing top-gated graphene structures. We show that bound states of both positive and negative energies exist in the energy spectrum and that there is a threshold value of the characteristic potential strength for which the first mode appears. Analytical solutions are presented in several limited cases and supercriticality is discussed. | en_GB |
dc.description.sponsorship | URCO | en_GB |
dc.description.sponsorship | EU FP7 | en_GB |
dc.identifier.citation | Vol. 89 (1), article 012101 | en_GB |
dc.identifier.doi | 10.1103/PhysRevA.89.012101 | |
dc.identifier.grantnumber | 17 N 1TAY12-1TAY13 | en_GB |
dc.identifier.grantnumber | FP7-607521 | en_GB |
dc.identifier.grantnumber | FP7-246784 | en_GB |
dc.identifier.grantnumber | FP7-316432 | en_GB |
dc.identifier.grantnumber | FP7-612624 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/14666 | |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.title | Quasi-exact solution to the Dirac equation for the hyperbolic-secant potential | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2014-03-20T11:50:44Z | |
dc.identifier.issn | 1050-2947 | |
dc.description | Copyright © 2014 American Physical Society | en_GB |
dc.identifier.eissn | 1094-1622 | |
dc.identifier.journal | Physical Review A - Atomic, Molecular, and Optical Physics | en_GB |