Anomalous Low-Field Classical Magnetoresistance in Two Dimensions Auteur(s): Dmitriev Alexander, Dyakonov M., Jullien R. (Article) Publié: Physical Review Letters, vol. 89 p.266804 (2002) Texte intégral en Openaccess : Ref HAL: hal-00176763_v1 PMID 12484849 Ref Arxiv: cond-mat/0212178 DOI: 10.1103/PhysRevLett.89.266804 WoS: 000179878200045 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 48 Citations Résumé: The magnetoresistance of classical two-dimensional electrons scattered by randomly distributed impurities is investigated by numerical simulation. At low magnetic fields, we find for the first time a negative magnetoresistance proportional to |B|. This unexpected behavior is shown to be due to a memory effect specific for backscattering events, which was not considered previously. Commentaires: 4 pages, 4 figures |