Asymmetric hysteresis for probing Dzyaloshinskii-Moriya interaction

Title
Asymmetric hysteresis for probing Dzyaloshinskii-Moriya interaction
Authors
한동수Nam-Hui KimJune-Seo KimYuxiang YinJung-Woo KooJaehun ChoSukmock LeeMathias KlauiHenk JM SwagtenBert KoopmansChun-Yeol You
Issue Date
2016-06
Publisher
Nano letters
Citation
VOL 16, NO 7-4446
Abstract
The interfacial Dzyaloshinskii-Moriya interaction (DMI) is intimately related to the prospect of superior domain wall dynamics and the formation of magnetic skyrmions. Although some experimental efforts have been recently proposed to quantify these interactions and the underlying physics, it is still far from trivial to address the interfacial DMI. Inspired by the reported tilt of the magnetization of the side edge of a thin film structure, we here present a quasi-static, straightforward measurement tool. By using laterally asymmetric triangular-shaped microstructures, it is demonstrated that interfacial DMI combined with an in-plane magnetic field yields a unique and significant shift in magnetic hysteresis. By systematic variation of the shape of the triangular objects combined with a droplet model for domain nucleation, a robust value for the strength and sign of interfacial DMI is obtained. This method gives immediate and quantitative access to DMI, enabling a much faster exploration of new DMI systems for future nanotechnology.
URI
http://pubs.kist.re.kr/handle/201004/70765
ISSN
1530-6984
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE