Correlation between interfacial Dzyaloshinskii-Moriya interaction and interfacial magnetic anisotropy of Pt/Co/MgO structures

We experimentally investigate the correlation between interfacial Dzyaloshinskii-Moriya interaction (iDMI) and interfacial perpendicular magnetic anisotropy (iPMA) of Pt/Co/MgO stacks with varying annealing temperature. We observe that iDMI of whole stack decreases as iPMA of whole stack increases,...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics express 2019-05, Vol.12 (5), p.53007
Main Authors: Kim, Woo-Yeong, Gweon, Hyung Keun, Lee, Kyung-Jin, You, Chun-Yeol
Format: Article
Language:English
Subjects:
annealing temperature
brillouin light scattering
interfacial Dzyaloshinskii-Moriya interaction
interfacial perpendicular magnetic anisotropy
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:We experimentally investigate the correlation between interfacial Dzyaloshinskii-Moriya interaction (iDMI) and interfacial perpendicular magnetic anisotropy (iPMA) of Pt/Co/MgO stacks with varying annealing temperature. We observe that iDMI of whole stack decreases as iPMA of whole stack increases, unexpectedly. However, when we separate contributions from the Pt/Co and Co/MgO interfaces, we find that at the Pt/Co interface, the iDMI increases with increasing iPMA, whereas at the Co/MgO interface, no meaningful correlation between the two interfacial energies is observed. Therefore, the correlation between iDMI and iPMA of whole stack is a consequence of different correlations at different interfaces.
ISSN:1882-0778
1882-0786
DOI:10.7567/1882-0786/ab181c