Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-193
Authors: Al Bahri, M.
Borie, Benjamin
Jin, T. L.
Sbiaa, R.
Kläui, Mathias
Piramanayagam, S. N.
Title: Staggered magnetic nanowire devices for effective domain-wall pinning in racetrack memory
Online publication date: 20-Aug-2019
Year of first publication: 2019
Language: english
Abstract: Domain-wall memory devices, in which the information is stored in nanowires, are expected to replace hard disk drives. a problem that remains to be solved in domain-wall memory is to pin the domain walls in a controllable manner at the nanometer scale using simple fabrication. we demonstrate the possibility to stabilize domain walls by making staggered nanowires. controllable domain-wall movement is exhibited in permalloy nanowires using magnetic fields where the pinning field is about 10 mt. the pinning field and stability of the domain walls can be increased by adjusting the offset dimensions of the staggered nanowires. domain-wall velocities of about 200 m/s are computed for the experimentally used permalloy nanowires. domain-wall velocities are found to be independent of pinning strength and stability, providing a way to tune the pinning without compromising domain-wall velocities.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
ROR: https://ror.org/023b0x485
DOI: http://doi.org/10.25358/openscience-193
URN: urn:nbn:de:hebis:77-publ-591872
Version: Accepted version
Publication type: Zeitschriftenaufsatz
License: In Copyright
Information on rights of use: https://rightsstatements.org/vocab/InC/1.0/
Journal: Physical review applied
11
2
Pages or article number: Art. 024023
Publisher: American Physical Society
Publisher place: College Park, Md.
Issue date: 2019
ISSN: 2331-7019
Publisher URL: http://dx.doi.org/10.1103/PhysRevApplied.11.024023
Publisher DOI: 10.1103/PhysRevApplied.11.024023
Appears in collections:JGU-Publikationen

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