Generation and manipulation of domain walls using a thermal gradient in a ferrimagnetic TbCo wire
Résumé
We demonstrate the ability to create, control the propagation, and annihilate domain walls in 25-
nm thick Tb22Co78 ferrimagnetic alloy wires using a temperature gradient under a constant applied
field. The temperature gradient is generated by passing a current through the wire, and the domain
wall properties are imaged using Kerr microscopy. The manipulation of the domain wall is made
possible by creating a temperature gradient such that the temperature at one end of the wire is
above the compensation temperature for the TbCo alloy, while the other end remains below the
compensation temperature. By tuning the intensity of the applied magnetic field and the current
flowing inside the wire, it is possible to carefully control the domain wall position that can then be
stabilized under zero applied field and current.
Fichier principal
Generation and manipulation of DWs using a thermal gradient in a ferrimagnetic TbCo wire, APL 106, 242403 (2015).pdf (1.09 Mo)
Télécharger le fichier
| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
|---|
Loading...