dc.contributor.author | Polini, Marco | en |
dc.contributor.author | Moulopoulos, Konstantinos | en |
dc.contributor.author | Davoudi, Bahman | en |
dc.contributor.author | Davoudi, B. | en |
dc.contributor.author | Tosi, Mario P. | en |
dc.creator | Polini, Marco | en |
dc.creator | Moulopoulos, Konstantinos | en |
dc.creator | Davoudi, Bahman | en |
dc.creator | Davoudi, B. | en |
dc.creator | Tosi, Mario P. | en |
dc.date.accessioned | 2019-12-02T15:32:27Z | |
dc.date.available | 2019-12-02T15:32:27Z | |
dc.date.issued | 2002 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/59008 | |
dc.description.abstract | We present a variational study of both unpaired and spin-singlet paired states induced in a two-dimensional electron gas at low density by a perpendicular magnetic field. It is based on an improved circular-cell approximation which leads to a number of closed analytical results. The ground-state energy of the Wigner crystal containing a single electron per cell in the lowest Landau level is obtained as a function of the filling factor v: the results are in good agreement with those of earlier approaches and predict vc≈0.25 for the upper filling factor at which the solid-liquid transition occurs. A novel localized state of spin-singlet electron pairs is examined and found to be a competitor of the unpaired state for filling factor v>1. The corresponding phase boundary is quantitatively displayed in the magnetic field-electron density plane. | en |
dc.source | Physical Review B - Condensed Matter and Materials Physics | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0037091628&doi=10.1103%2fPhysRevB.65.165306&partnerID=40&md5=6426f809d4b702d9eaa0fd8987b76a78 | |
dc.subject | article | en |
dc.subject | density | en |
dc.subject | electron | en |
dc.subject | mathematical analysis | en |
dc.subject | analytic method | en |
dc.subject | calculation | en |
dc.subject | phase transition | en |
dc.subject | magnetic field | en |
dc.subject | gas | en |
dc.subject | acceleration | en |
dc.title | Unpaired and spin-singlet paired states of a two-dimensional electron gas in a perpendicular magnetic field | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1103/PhysRevB.65.165306 | |
dc.description.volume | 65 | |
dc.description.issue | 16 | |
dc.description.startingpage | 1653061 | |
dc.description.endingpage | 16530610 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :7</p> | en |
dc.source.abbreviation | Phys.Rev.B Condens.Matter Mater.Phys. | en |
dc.contributor.orcid | Moulopoulos, Konstantinos [0000-0001-5139-436X] | |
dc.gnosis.orcid | 0000-0001-5139-436X | |