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Photocoercivity of Nano‐Stabilized Au:Fe Superparamagnetic Nanoparticles
Author(s) -
Bogani Lapo,
Cavigli Lucia,
de Julián Fernández Cesár,
Mazzoldi Paolo,
Mattei Giovanni,
Gurioli Massimo,
Dressel Martin,
Gatteschi Dante
Publication year - 2010
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201002295
Subject(s) - materials science , nanoparticle , nanotechnology , superparamagnetism , nano , nanostructure , coercivity , metal , magnetic field , metallurgy , composite material , condensed matter physics , magnetization , physics , quantum mechanics
We demonstrate light‐induced switching of the coercive field of true nano‐stabilized Au:Fe nanoparticles with exceptionally good magneto‐optical response. Two separate processes are identified, both exploitable for photocommutation. This innovative material allows combining appealing photoswitching properties with the advantages of traditional metallic nanoparticles, opening the way to new multifunctional nanostructures.