dc.contributor.author |
Orozco, S |
|
dc.contributor.author |
Mendez-Moreno, R |
|
dc.contributor.author |
Moreno, M |
|
dc.date.accessioned |
2011-01-22T10:26:58Z |
|
dc.date.available |
2011-01-22T10:26:58Z |
|
dc.date.issued |
2001 |
|
dc.identifier.issn |
0038-1098 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/1978 |
|
dc.description.abstract |
The energies of the paramagnetic and ferromagnetic states of the two-dimensional electron gas are evaluated and compared in order to determine the magnetic character of the ground state. The calculations are made with the self-consistent Hartree-Fock approximation and the deformable jellium model. Several transition points between different magnetic phases are obtained. At very high densities of r(s) approximate to 2 a first transition is obtained from a paramagnetic fluid to a ferromagnetic one. At r(st1) approximate to 4.8 a symmetry and magnetic transition is obtained from a ferromagnetic fluid to a paramagnetic localized state with a periodic density centered on a hexagonal lattice. A ferromagnetic localized state is predicted at lower densities. The results are compared with those reported for the system with square symmetry. (C) 2001 Elsevier Science Ltd. All rights reserved. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Magnetic character of the two-dimensional electron gas |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
2335 |
|
dc.source.novolpages |
119(2):111-115 |
|
dc.subject.wos |
Physics, Condensed Matter |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.subject.keywords |
electron-electron interaction |
|
dc.subject.keywords |
electronic states (localized) |
|
dc.subject.keywords |
phase transitions |
|
dc.relation.journal |
Solid State Communications |
|