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

PDF
 Accepted Version
993kB 
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 
References:  Castro Neto A H, Guinea F, Peres N M R, Novoselov K S and Geim A K 2009 Rev. Mod. Phys. 81 109
Abergel D S L, Apalkov V, Berashevich J, Ziegler K and Chakraborty T 2010 Adv. Phys. 59 261 Klein O 1929 Z. Phys. 53 157 Katsnelson M I, Novoselov K S and Geim A K 2006 Nature Phys. 2 620 Chen HYi, Apalkov V and Chakraborty T 2007 Phys. Rev. Lett. 98 186803 Matulis A and Peeters F M 2007 Phys. Rev. B 75 125429 Hewageegana P and Apalkov V 2008 Phys. Rev. B 77 245426 Peeters F M and Matulis A 1993 Phys. Rev. B 48 15166 Reijniers J, Peeters F M and Matulis A 2001 Phys. Rev. B 64 245314 De Martino A, Dell’ Anna L and Egger R 2007 Phys. Rev. Lett. 98 066802 Ramezani Masir M, Vasilopoulos P, Matulis A and Peeters F M 2008 Phys. Rev. B 77 235443 Park S and Sim H S 2008 Phys. Rev. B 77 075433 Oroszlany L, Rakyta P, Kormanyos A, Lambert C J and Cserti J 2008 Phys. Rev. B 77 081403(R) Ghosh T K, De Martino A, Häusler W, Dell’Anna L and Egger R 2008 Phys. Rev. B 77 081404(R) Zhai F and Chang K 2008 Phys. Rev. B 77 113409 Xu H, Heinzel T, Evaldsson M and Zozoulenko I V 2008 Phys. Rev. B 77 245401 Lee C M, Lee R C H, Ruan W Y and Chou M Y 2010 Appl. Phys. Lett. 96 212101 Wang D and Jin G 2009 Phys. Lett. A 373 4082 Zazunov A, Kundu A, Hutten A and Egger R 2010 Phys. Rev. B 82 155431 Pereira V M and Castro Neto A H 2009 Phys. Rev. Lett. 103 046801 Guinea F, Katsnelson M I and Vozmediano M A H 2008 Phys. Rev. B 77 075422 Ramezani Masir M, Matulis A and Peeters F M 2009 Phys. Rev. B 79 155451 Gradshteyn I S and Ryzhik I M 2000 Tables of Integrals, Series, an Products (New York: Academic) p 699 Katsnelson M I 2007 Mater. Today 10 20 Gusynin V P and Sharapov S G 2005 Phys. Rev. B 71 125124 Krstajic P M and Vasilopoulos P 2011 Phys. Rev. B 83 075427 Melrose D B and Parle A J 1983 Aust. J. Phys. 36 755 Semenoff G W 1984 Phys. Rev. Lett. 53 2449 Novoselov K S, Geim A K, Morozov S V, Jiang D, Katsnelson M I, Grigorieva I V, Dubonos S V and Firsov A A 2005 Nature 438 197 Ye P D, Weiss D, Gerhardts R R, Seeger M, von Klitzing K, Eberl K and Nickel H 1995 Phys. Rev. Lett. 74 3013 Dubonos S V, Geim A K, Novoselov K S, Lok J G S, Maan J C and Henini M 2000 Physica E 6 746 For a recent review see Nogaret A 2010 J. Phys.: Condens. Matter 22 253201 Nielsen M and Hedegård P 1995 Phys. Rev. B 51 7679 Zarenia M, Pereira J M, Peeters F M and Farias G A 2009 Nano Lett. 9 4088 Zarenia M, Pereira J M, Chaves A, Peeters F M and Farias G A 2010 Phys. Rev. B 81 045431 Zarenia M, Pereira J M, Chaves A, Peeters F M and Farias G A 2010 Phys. Rev. B 82 119906(E) 
Repository Staff Only: item control page