Počet záznamů: 1
Persistent currents due to point obstacles
- 1.0185715 - UJF-V 20033014 RIV NL eng J - Článek v odborném periodiku
Cheon, T. - Exner, Pavel
Persistent currents due to point obstacles.
Physics Letters. A. Roč. 307, č. 4 (2003), s. 209-214. ISSN 0375-9601. E-ISSN 1873-2429
Grant CEP: GA AV ČR IAA1048101
Výzkumný záměr: CEZ:AV0Z1048901
Klíčová slova: persistent currents * impurity * Landau levels
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 1.324, rok: 2003
We discuss properties of the two-dimensional Landau Hamiltonian perturbed by 4 family of identical delta potentials arranged equidistantly along a closed loop. It is demonstrated that for the loop size exceeding the effective size of the point obstacles and. the cyclotronic radius such a system exhibits persistent currents at the bottom of the spectrum. We also show that the effect is sensitive to a small disorder.
Trvalý link: http://hdl.handle.net/11104/0082098
Počet záznamů: 1