Ramezani Masir, M and Vasilopoulos, P. and Peeters, F M (2011) Graphene in inhomogeneous magnetic fields: bound, quasibound and scattering states. Journal of Physics: Condensed Matter, 23 (31). p. 315301. ISSN 09538984

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Official URL: http://dx.doi.org/10.1088/09538984/23/31/315301
Abstract
The electron states in graphenebased magnetic dot and magnetic ring structures and combinations of both are investigated. The corresponding spectra are studied as a function of the radii, the strengths of the inhomogeneous magnetic field and of a uniform background field, the strength of an electrostatic barrier and the angular momentum quantum number. In the absence of an external magnetic field we have only longlived quasibound and scattering states and we assess their influence on the density of states. In addition, we consider elastic electron scattering by a magnetic dot, whose average B vanishes, and show that the Hall and longitudinal resistivities, as a function of the Fermi energy, exhibit a pronounced oscillatory structure due to the presence of quasibound states. Depending on the dot parameters this oscillatory structure differs substantially for energies below and above the first Landau level.
Divisions:  Concordia University > Faculty of Arts and Science > Physics 

Item Type:  Article 
Refereed:  Yes 
Authors:  Ramezani Masir, M and Vasilopoulos, P. and Peeters, F M 
Journal or Publication:  Journal of Physics: Condensed Matter 
Date:  15 July 2011 
Keywords:  75.25.+z Spin arrangements in magnetically ordered materials (including neutron and spinpolarized electron studies, synchrotronsource xray scattering, etc.) 71.20.Tx Fullerenes and related materials; intercalation compounds 72.20.My Galvanomagnetic and other magnetotransport effects 73.20.r Electron states at surfaces and interfaces 
ID Code:  15174 
Deposited By:  DANIELLE DENNIE 
Deposited On:  02 Sep 2011 18:15 
Last Modified:  02 Sep 2011 18:15 
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