Experimental Analysis of Magneto-Optical Effects in Nanoelectronic Devices

Abstract

This study presents an experimental analysis of magneto-optical (MO) effects in nanoelectronic devices, emphasizing how nanoscale engineering enhances the interaction between magnetic fields and electromagnetic radiation to enable high-performance functionalities. Drawing on existing experimental data, the study explores key MO phenomena such as the Faraday effect, Kerr rotation, magnetic circular dichroism, and plasmon-enhanced optical modulation, highlighting their significance in device optimization and next-generation applications. Experimental findings demonstrate that nanostructured materials—including garnet thin films, ferromagnetic multilayers, magnetoplasmonic architectures, two-dimensional materials, and topological insulators—exhibit amplified MO responses arising from strong spin–orbit coupling, enhanced field confinement, and tailored electronic band structures. These responses contribute to ultrafast switching speeds, high-sensitivity magnetic detection, improved optical isolation, and efficient spin–photon coupling, making MO effects vital for spintronics, on-chip photonics, memory storage, and quantum information technologies. The study also synthesizes insights from device-level experiments, showing how fabrication methods such as lithographic patterning, epitaxial growth, and nanoscale surface engineering influence MO performance and scalability. The analysis underscores the essential role of MO effects in enabling miniaturized, energy-efficient, and high-speed nanoelectronic systems while identifying key challenges that must be addressed to achieve their full technological potential.