Ramezani Masir, M and Vasilopoulos, P. and Peeters, F M (2011) Graphene in inhomogeneous magnetic fields: bound, quasi-bound and scattering states. Journal of Physics: Condensed Matter, 23 (31). p. 315301. ISSN 0953-8984
![[img]](http://spectrum.library.concordia.ca/style/images/fileicons/application_pdf.png)
| PDF - Accepted Version 970Kb |
Official URL: http://dx.doi.org/10.1088/0953-8984/23/31/315301
Abstract
The electron states in graphene-based 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 long-lived quasi-bound 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 quasi-bound 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 spin-polarized electron studies, synchrotron-source x-ray 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 14:15 |
| Last Modified: | 02 Sep 2011 14:15 |
| 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 H-Yi, 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
