Tunable chiral spin texture in magnetic domain-walls

Magnetic domain-walls (DWs) with a preferred chirality exhibit very efficient current-driven motion. Since structural inversion asymmetry (SIA) is required for their stability, the observation of chiral domain walls in highly symmetric Pt/Co/Pt is intriguing. Here, we tune the layer asymmetry in thi...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2014-06, Vol.4 (1), p.5248-5248, Article 5248
Main Authors: Franken, J. H., Herps, M., Swagten, H. J. M., Koopmans, B.
Format: Article
Language:English
Subjects:
639/301
639/301/119
639/301/119/1001
639/766/25
Anisotropy
Applied physics
Asymmetry
Chirality
Efficiency
Humanities and Social Sciences
multidisciplinary
Science
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Magnetic domain-walls (DWs) with a preferred chirality exhibit very efficient current-driven motion. Since structural inversion asymmetry (SIA) is required for their stability, the observation of chiral domain walls in highly symmetric Pt/Co/Pt is intriguing. Here, we tune the layer asymmetry in this system and observe, by current-assisted DW depinning experiments, a small chiral field which sensitively changes. Moreover, we convincingly link the observed efficiency of DW motion to the DW texture, using DW resistance as a direct probe for the internal orientation of the DW under the influence of in-plane fields. The very delicate effect of capping layer thickness on the chiral field allows for its accurate control, which is important in designing novel materials for optimal spin-orbit-torque-driven DW motion.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep05248