Large RF susceptibility of transverse domain walls |
| |
Authors: | Rousseau O Petit-Watelot S Viret M |
| |
Institution: | Service de Physique de l'Etat Condensé, CEA Saclay, DSM/IRAMIS/SPEC, URA CNRS 2464, Gif-sur-Yvette, France. |
| |
Abstract: | Changes in domain wall resistance under radio-frequency (RF) irradiation are experimentally studied for transverse walls. An original experimental technique is applied to the measurement in a permalloy nano-stripe with a notch, where the walls are found to provide a largely enhanced resistive response as compared to saturated domains. Their susceptibility is found to be an order of magnitude larger than that of the domains in a frequency range between 5 and 20 GHz. We argue that the RF fields induce an internal distortion of the magnetization profile that depends on the shape of the domain wall. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|