Carrier states on cylindrical 2DEGs in a magnetic field

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 40; no. 6; pp. 2040 - 2042
• Main Authors: Ferrari, Giulio, Bertoni, A., Goldoni, G., Molinari, E.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2008; Elsevier
• Subjects: 2DEG; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Confinement; Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Exact sciences and technology; Low dimensional systems; Magnetic field; Physics; 73.23.−b; Confinement; Low dimensional systems; 2DEG; 73.20.−r; 73.22.−f; Magnetic field; Low dimensional systems; 2DEG; Confinement; Magnetic field; Energy levels; Modulation; Magnetic field effects; Schroedinger equation; Two-dimensional electron gas; Transverse field; 73.20.-r; 73.22.-f; 73.23.-b
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2007.09.131

We compute carrier states on a cylindrical 2DEG under the influence of a magnetic field perpendicular to the tube axis. The field and the topology of the cylindrical surface have been included in the Schrödinger equation, that has been solved exactly. The results show that carrier states can be driven from a 2D regime, to a quasi-1D regime by transverse magnetic field. In the case of a spatially modulated magnetic field, the carriers can localise to quasi-0D states.