| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevB.84.155302 |
|---|
| Auteur | Rechercher : Dharma-Wardana, M.W.C.1 |
|---|
| Affiliation | - Conseil national de recherches du Canada
|
|---|
| Format | Texte, Article |
|---|
| Résumé | The very low-temperature thermal effective mass m* of para- and ferromagnetic electrons in a uniform two-dimensional (2D) layer is studied. Analytical and numerical results are used to define a partially regularized m* valid to logarithmic accuracy in the sense of Landau for the Hartree-Fock (H-F) approximation. The resulting H-F m * decreases linearly with the electron-disk radius r s. The effective mass including correlation is calculated via a physically transparent formula that uses a classical map of the 2D pair-distribution function (PDF) and the finite-T exchange-correlation free energy Fxc(T). The T=0 PDFs of Gori-Giorgi and a quantum analog of the potential of mean-force used in the statistical mechanics of classical fluids are invoked. Our results for m* fall well within the results from recent quantum Monte Carlo simulations at T=0, and other results, none of them being a finite-T approach. Published by the American Physical Society. |
|---|
| Date de publication | 2011 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Numéro NPARC | 21271619 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 035d2fd0-d045-4249-955a-76416e2b798e |
|---|
| Enregistrement créé | 2014-03-24 |
|---|
| Enregistrement modifié | 2020-04-21 |
|---|
