Expanding Effective-Medium Theory to Optical Diamagnetic Responses in Magnetoplasmonic Colloids


Ondřej Vlašín, Oana Pascu, Anna Roig, and Gervasi Herranz.  

Phys. Rev. Applied 2, 054003

DOI: http://dx.doi.org/10.1103/PhysRevApplied.2.054003

We show that very diluted dispersions of ferromagnetic metal nanoparticles in diamagnetic hosts show a large, linear response under an applied magnetic field, which is of interest for emerging applications in sensing, integrated optical communications, and magneto-optical current transformers and transducers.  We present also a theory that describes accurately these results and that can be further extended to describe the optical properties of e.g., metal inclusions in polymers or glasses.


Oxides for new-generation electronics

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