Advances in Magneto-Optics for Nanoelectronics: A Critical Review
Keywords:
magneto-optical effects, nanoelectronics, magnetoplasmonics, integrated photonics, nanoscale materialsAbstract
Magneto-optics has emerged as a transformative field at the intersection of materials science, photonics, and nanoelectronics, offering novel mechanisms for manipulating light and magnetization at ultrafast timescales and nanometer dimensions. This critical review examines recent advancements in magneto-optical (MO) materials, device architectures, and nanoscale engineering techniques that are reshaping the capabilities of next-generation electronic and photonic systems. Significant progress in yttrium iron garnet films, magnetoplasmonic crystals, two-dimensional materials, topological insulators, and hybrid nanoarchitectures has enabled stronger polarization rotation, enhanced spectral tunability, and improved non-reciprocal behavior. Concurrently, breakthroughs in nanofabrication—such as subwavelength patterning, layered heterostructures, and plasmonic resonance engineering—have elevated MO performance to levels suitable for integrated photonics, spintronic memory, nanoscale sensing, and quantum communication. The review also highlights key applications including ultrafast optical switching, high-density data storage, magneto-optical isolators, multifunctional nanoparticles, and reconfigurable photonic circuits. Despite these advancements, challenges persist in material compatibility, thermal management, stability, and CMOS integration. Addressing these issues will determine the scalability and commercial viability of MO technologies.
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