Fernández-Rossier, Joaquín, Piermarocchi, C., Chen, P., MacDonald, A.H., Sham, L.J. Coherently photoinduced ferromagnetism in diluted magnetic semiconductors FERNÁNDEZ-ROSSIER, J., et al. “Coherently photoinduced ferromagnetism in diluted magnetic semiconductors”. Physical Review Letters. Vol. 93, No. 12 (17 Sept. 2004). ISSN 0031-9007, pp. 127201-1/4 URI: http://hdl.handle.net/10045/25250 DOI: 10.1103/PhysRevLett.93.127201 ISSN: 0031-9007 (Print) Abstract: Ferromagnetism is predicted in undoped diluted magnetic semiconductors illuminated by intense sub-band-gap laser radiation . The mechanism for photoinduced ferromagnetism is coherence between conduction and valence bands induced by the light which leads to an optical exchange interaction. The ferromagnetic critical temperature TC depends both on the properties of the material and on the frequency and intensity of the laser and could be above 1K. Keywords:Ferromagnetism, Diluted magnetic semiconductors, Photoinduced American Physical Society info:eu-repo/semantics/article