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http://hdl.handle.net/2445/10498
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DC Field | Value | Language |
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dc.contributor.author | Emperador, Agustí | cat |
dc.contributor.author | Pi Pericay, Martí | cat |
dc.contributor.author | Barranco Gómez, Manuel | cat |
dc.contributor.author | Lipparini, Enrico | cat |
dc.date.accessioned | 2009-12-24T10:43:58Z | - |
dc.date.available | 2009-12-24T10:43:58Z | - |
dc.date.issued | 2001 | cat |
dc.identifier.issn | 0163-1829 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/10498 | - |
dc.description.abstract | We present a systematic study of ground state and spectroscopic properties of many-electron nanoscopic quantum rings. Addition energies at zero magnetic field (B) and electrochemical potentials as a function of B are given for a ring hosting up to 24 electrons. We find discontinuities in the excitation energies of multipole spin and charge density modes, and a coupling between the charge and spin density responses that allow to identify the formation of ferromagnetic ground states in narrow magnetic field regions. These effects can be observed in Raman experiments, and are related to the fractional Aharonov-Bohm oscillations of the energy and of the persistent current in the ring | eng |
dc.format.extent | 9 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.64.155304 | cat |
dc.relation.ispartof | Physical Review B, 2001, vol. 64, núm. 15, p. 155304(1)-155304(9) | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevB.64.155304 | - |
dc.rights | (c) The American Physical Society, 2001 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Espectroscòpia Raman | cat |
dc.subject.classification | Semiconductors | cat |
dc.subject.other | Raman spectroscopy | eng |
dc.subject.other | Semiconductors | eng |
dc.title | Multipole modes and spin features in the Raman spectrum of nanoscopic quantum rings | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 184417 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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184417.pdf | 403.32 kB | Adobe PDF | View/Open |
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