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Many-Body Orbital Paramagnetism in Doped Graphene Sheets
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Many-Body Orbital Paramagnetism in Doped Graphene Sheets
Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/7623
| Title: | Many-Body Orbital Paramagnetism in Doped Graphene Sheets |
| Author: | Principi, A.; Polini, Marco; Vignale, Giovanni, 1957-; Katsnelson, M. I. (Mikhail Iosifovich) |
| Keywords: |
theories and models of many-electron systems
Superparamagnetism |
| Date: | 2010-06-02 |
| Publisher: | American Physical Society |
| Citation: | Phys. Rev. Lett. 104, 225503 (2010) |
| Abstract: | The orbital magnetic susceptibility of a gas of noninteracting massless Dirac fermions is zero when the Fermi energy is away from the Dirac point. Making use of diagrammatic perturbation theory, we calculate exactly the orbital magnetic susceptibility of massless Dirac fermions to first order in the Coulomb interaction demonstrating that it is finite and positive. Doped graphene sheets are thus unique systems in which the orbital magnetic susceptibility is completely controlled by many-body effects. |
| URI: | http://hdl.handle.net/10355/7623 |
| ISSN: | 0031-9007 |
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Physics and Astronomy publications (MU) [549]
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