Synchronous precessional motion of multiple domain walls in a ferromagnetic nanowire by perpendicular field pulses.

ABSTRACT: Magnetic storage and logic devices based on magnetic domain wall motion rely on the precise and synchronous displacement of multiple domain walls. The conventional approach using magnetic fields does not allow for the synchronous motion of multiple domains. As an alternative method, synchronous current-induced domain wall motion was studied, but the required high-current densities prevent widespread use in devices. Here we demonstrate a radically different approach: we use out-of-plane magnetic field pulses to move in-plane domains, thus combining field-induced magnetization dynamics with the ability to move neighbouring domain walls in the same direction. Micromagnetic simulations suggest that synchronous permanent displacement of multiple magnetic walls can be achieved by using transvers

SUBMITTER: Kim JS 

PROVIDER: S-EPMC4077121 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature