A paper by Professor Daniel Gamelin, members of his research group, and collaborators at the University of Duisberg-Essen appeared in the August 21, 2009 issue of Science, published by the American Association for the Advancement of Science (AAAS). The paper details the spontaneous photoinduced polarization of Mn2+ spins in colloidal doped CdSE nanocrystals. Very large effective internal magnetic fields were observed up to ~50 K and photomagnetic effects are observed all the way up to room temperature.
Citation: “Light-Induced Spontaneous Magnetization in Doped Colloidal Quantum Dots” Rémi Beaulac, Lars Schneider, Paul I. Archer, Gerd Bacher, Daniel R. Gamelin, Science 325 (5943), 973 (21 August 2009) [DOI: 10.1126/science.1174419]
To view the abstract and full text, please visit Science magazine.