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- Publisher Website: 10.1103/PhysRevB.81.115416
- Scopus: eid_2-s2.0-77955077835
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Article: Magnetism of finite graphene samples: Mean-field theory compared with exact diagonalization and quantum Monte Carlo simulations
| Title | Magnetism of finite graphene samples: Mean-field theory compared with exact diagonalization and quantum Monte Carlo simulations |
|---|---|
| Authors | |
| Issue Date | 2010 |
| Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ |
| Citation | Physical Review B (Condensed Matter and Materials Physics), 2010, v. 81 n. 11, article no. 115416 How to Cite? |
| Abstract | The magnetic properties of graphene on finite geometries are studied using a self-consistent mean-field theory of the Hubbard model. This approach is known to predict ferromagnetic edge states close to the zigzag edges in single-layer graphene quantum dots and nanoribbons. In order to assess the accuracy of this method, we perform complementary exact diagonalization and quantum Monte Carlo simulations. We observe good quantitative agreement for all quantities investigated provided that the Coulomb interaction is not too strong. © 2010 The American Physical Society. |
| Persistent Identifier | http://hdl.handle.net/10722/268519 |
| ISSN | 2014 Impact Factor: 3.736 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Feldner, Hélène | - |
| dc.contributor.author | Meng, Zi Yang | - |
| dc.contributor.author | Honecker, Andreas | - |
| dc.contributor.author | Cabra, Daniel | - |
| dc.contributor.author | Wessel, Stefan | - |
| dc.contributor.author | Assaad, Fakher F. | - |
| dc.date.accessioned | 2019-03-25T07:59:54Z | - |
| dc.date.available | 2019-03-25T07:59:54Z | - |
| dc.date.issued | 2010 | - |
| dc.identifier.citation | Physical Review B (Condensed Matter and Materials Physics), 2010, v. 81 n. 11, article no. 115416 | - |
| dc.identifier.issn | 1098-0121 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/268519 | - |
| dc.description.abstract | The magnetic properties of graphene on finite geometries are studied using a self-consistent mean-field theory of the Hubbard model. This approach is known to predict ferromagnetic edge states close to the zigzag edges in single-layer graphene quantum dots and nanoribbons. In order to assess the accuracy of this method, we perform complementary exact diagonalization and quantum Monte Carlo simulations. We observe good quantitative agreement for all quantities investigated provided that the Coulomb interaction is not too strong. © 2010 The American Physical Society. | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
| dc.relation.ispartof | Physical Review B (Condensed Matter and Materials Physics) | - |
| dc.title | Magnetism of finite graphene samples: Mean-field theory compared with exact diagonalization and quantum Monte Carlo simulations | - |
| dc.type | Article | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1103/PhysRevB.81.115416 | - |
| dc.identifier.scopus | eid_2-s2.0-77955077835 | - |
| dc.identifier.volume | 81 | - |
| dc.identifier.issue | 11 | - |
| dc.identifier.spage | article no. 115416 | - |
| dc.identifier.epage | article no. 115416 | - |
| dc.identifier.eissn | 1550-235X | - |
| dc.identifier.isi | WOS:000276248800129 | - |
| dc.identifier.issnl | 1098-0121 | - |