Journal Article

FZJ-2021-01696

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Annihilation and Control of Chiral Domain Walls with Magnetic Fields

Karna, S. K. (Corresponding author) ; Marshall, M. ; Xie, W. ; DeBeer-Schmitt, L. ; Young, D. P. ; Vekhter, I. ; Shelton, W. A. ; Kovács, A.FZJ* ; Charilaou, M. ; DiTusa, J. F.

2021
ACS Publ. Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/27614  doi:10.1021/acs.nanolett.0c03199

Abstract: The control of domain walls is central to nearly all magnetic technologies, particularly for information storage and spintronics. Creative attempts to increase storage density need to overcome volatility due to thermal fluctuations of nanoscopic domains and heating limitations. Topological defects, such as solitons, skyrmions, and merons, may be much less susceptible to fluctuations, owing to topological constraints, while also being controllable with low current densities. Here, we present the first evidence for soliton/soliton and soliton/antisoliton domain walls in the hexagonal chiral magnet Mn1/3NbS2 that respond asymmetrically to magnetic fields and exhibit pair-annihilation. This is important because it suggests the possibility of controlling the occurrence of soliton pairs and the use of small fields or small currents to control nanoscopic magnetic domains. Specifically, our data suggest that either soliton/soliton or soliton/antisoliton pairs can be stabilized by tuning the balance between intrinsic exchange interactions and long-range magnetostatics in restricted geometries.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)
2. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 535 - Materials Information Discovery (POF4-535) (POF4-535)
2. 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538) (856538)

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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