@article{10902/10558, year = {2015}, month = {10}, url = {http://hdl.handle.net/10902/10558}, abstract = {We report unexpected enhancements of the magneto-optical effect in ferromagnetic Permalloy disks of diameter D < 400 nm. The effect becomes increasingly pronounced for smaller D, reaching more than a 100% enhancement for D ¼ 100 nm samples. By means of experiments and simulations, the origin of this effect is identified as a nanoscale ring-shaped region at the disk edges, in which the magneto-optically induced electric polarization is enhanced. This leads to a modification of the electromagnetic near fields and causes the enhanced magneto-optical excitation, independent from any optical resonance.}, organization = {We acknowledge funding from the Basque Government (Program No. PI2012-47) and the Spanish Government (Project No.MAT2012-36844).Work at the Universidad de Cantabria has been supported by MICINN under Project No. FIS2013-45854-P.}, publisher = {American Physical Society}, publisher = {PRL 115, 187403 (2015)}, title = {Enhanced Magneto-Optical Edge Excitation in Nanoscale Magnetic Disks}, author = {Berger, A. and Alcaraz de la Osa, Rodrigo and Suszka, A. K. and Pancaldi, M. and Saiz Vega, José María and Moreno Gracia, Fernando and Oepen, H. P. and Vavassori, P.}, }