A magnetic patterned system constituted by antidots has been synthesized by electron beam lithography and its static and dynamical properties have been studied. Magnetic-domain patterns related to the static hysteresis loop have been acquired by means of magnetic force microscopy. The dynamical response to a magnetic field pulse has been studied by means of micromagnetic simulations. We found the magnetic response of a single antidot (excitation of a single mode) is qualitatively different from the one of coupled antidots (excitation of two modes). In the latter configuration, micromagnetic simulations show the low-frequency mode related to the in-phase oscillation of the magnetization and the high-frequency mode related to the out-of-phase oscillation of the magnetization.
|Titolo:||Magnonics Crystal Composed by Magnetic Antivortices Confined in Antidots|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1109/TMAG.2011.2158578|
|Appare nelle tipologie:||1.1 Articolo in rivista|