Pattern formation in paramagnetic diluted magnetic semiconductors Auteur(s): Vladimirova M., Scalbert D., Misbah Chaouqi (Article) Publié: Physical Review B, vol. 71 p.233203 (2005) Ref HAL: hal-00440498_v1 DOI: 10.1103/PhysRevB.71.233203 WoS: 000230276800011 Exporter : BibTex | endNote 11 Citations Résumé: Magnetization patterning by injection of nonequilibrium electron spins in paramagnetic diluted magnetic semiconductors is studied theoretically. The system is shown to undergo an instability in a region of the parameter space defined by the carriers generation rate and magnetic field. The bifurcation is found to be of subcritical nature. Existing experimental results are examined within this model and experiments are proposed. |