Klein tunneling in carbon nanostructures: A free-particle dynamics in disguise

0366134 - ÚJF 2012 RIV US eng J - Článek v odborném periodiku
Jakubský, Vít - Nieto, A. - Plyushchay, M.S.
Klein tunneling in carbon nanostructures: A free-particle dynamics in disguise.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 83, č. 4 (2011), 047702/1-047702/3. ISSN 1550-7998
Grant CEP: GA MŠMT LC06002
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: BACK SCATTERING * NANOTUBES * GRAPHENE
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 4.558, rok: 2011

The absence of backscattering in metallic nanotubes as well as perfect Klein tunneling in potential barriers in graphene are the prominent electronic characteristics of carbon nanostructures. We show that the phenomena can be explained by a peculiar supersymmetry generated by a first order Hamiltonian and zero-order supercharge operators. Like the supersymmetry associated with second order reflectionless finite-gap systems, it relates here the low-energy behavior of the charge carriers with the free-particle dynamics.
Trvalý link: http://hdl.handle.net/11104/0201213