Magneto-Optical Sensors: A New Technological Challenge

Currently, several phenomena and their applications have been studied in optoelectronics and spintronics, among them are: Kerr-Faraday-Zeeman effects, spin Hall effects, spin Hall magnetoresistance, spin-transfer torque effects, magnetic anisotropy field control, multiferroic properties in complex oxides, spin Seebeck effect, spin Peltier effect, quantum Hall effect, 2D material properties (topological insulators, graphene, etc), plasmonic resonance, dynamic phenomena excited with continuous and pulsed lasers, between others. Among the phenomena that stand out for applications are the effects that present magnetic and optical dependence, the so-called magneto-optical effects. In this work we study magneto-optical interactions in systems with low-dimensionality (few nanometers) and we propose the construction of a magneto-optical sensor, which can encode information using the magneto-optical polarization of the medium.