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Department of Chemistry College of Liberal Arts and Sciences

Optical Modulation of Magnetization

Persistent Photomagnetism in Superparamagnetic Iron Oxide Nanoparticles

Image showing lower delta E barrier upon illumination of the spin alignment process. Graph of magnetic hysteresis in light and dark showing a narrower hysteresis in light.
He S. et al., Adv. Electron. Mater. 2018, 4, 1700661

LSPR Mediated Magnetic Response in Magnetoplasmonic Heterogeneous Nanoparticles

Au nanoparticle over a spin landscape showing that near the nanoparticle there is a local dephasing of spin.
Rendered model of a Fe3O4 nanoparticle, 14.1 nm, and a Au/Fe3O4 dumbbell with a 6.3 nm Au nanoparticle a top the 14.1 nm Fe3O4 sphere. Transmission electron microscope image of the Au/Fe dumbbell.
He S. et al. manuscript in preparation