Figure 4
From: Optically Transparent Ferromagnetic Nanogranular Films with Tunable Transmittance
Image of optical transmission and magneto-optical response of a nanogranular film.
Schematic of a nanogranular film with nanometer-sized granules dispersed in an insulator matrix. The right side of Fig. 4 depicts a schematic profile of two granules. In an AC electric field, the oscillating transition of an electric charge carrier occurs due to the quantum-mechanical tunneling. Tunneling depends on the relative orientation of the magnetization of the granules. This spin-dependent charge oscillation induces the magneto-optical response of the nanogranular films.
