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 transverse domain walls with identical chirality combined with regular pinning sites and an asymmetric pulse. By performing scanning transmission X-ray microscopy, we are able to experimentally demonstrate in-plane magnetized domain wall motion due to out-of-plane magnetic field pulses.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Kim JS,Mawass MA,Bisig A,Krüger B,Reeve RM,Schulz T,Büttner F,Yoon J,You CY,Weigand M,Stoll H,Schütz G,Swagten HJ,Koopmans B,Eisebitt S,Kläui Mdoi
10.1038/ncomms4429subject
Has Abstractpub_date
2014-03-24 00:00:00pages
3429issn
2041-1723pii
ncomms4429journal_volume
5pub_type
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