Shepley, PM orcid.org/0000-0003-1240-593X, Tunnicliffe, H, Shahbazi, K et al. (2 more authors) (2018) Magnetic properties, domain-wall creep motion, and the Dzyaloshinskii-Moriya interaction in Pt/Co/Ir thin films. Physical Review B, 97 (13). 134417. ISSN 2469-9950
Abstract
We study the magnetic properties of perpendicularly magnetized Pt/Co/Ir thin films and investigate the domain-wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultrathin films. Measurements of the Co layer thickness dependence of saturation magnetization, perpendicular magnetic anisotropy, and symmetric and antisymmetric (i.e., DM) exchange energies in Pt/Co/Ir thin films have been made to determine the relationship between these properties. We discuss the measurement of the DM interaction by the expansion of a reverse domain in the domain-wall creep regime. We show how the creep parameters behave as a function of in-plane bias field and discuss the effects of domain-wall roughness on the measurement of the DM interaction by domain expansion. Whereas modifications to the creep law with DM field and in-plane bias fields have taken into account changes in the energy barrier scaling parameter α, we find that both α and the velocity scaling parameter v₀ change as a function of in-plane bias field.
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Copyright, Publisher and Additional Information: | © 2018 American Physical Society, originally published in Physical Review B. Uploaded in accordance with the publisher's self-archiving policy. | ||||||||
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Institution: | The University of Leeds | ||||||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
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Depositing User: | Symplectic Publications | ||||||||
Date Deposited: | 23 Apr 2018 13:10 | ||||||||
Last Modified: | 23 May 2018 04:39 | ||||||||
Status: | Published | ||||||||
Publisher: | American Physical Society | ||||||||
Identification Number: | https://doi.org/10.1103/PhysRevB.97.134417 | ||||||||
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