Journal Article

FZJ-2022-02724

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Néel-Type Skyrmions Detected through Polarized Small-Angle Neutron Scattering

Kurumaji, T. (Corresponding author)FZJ*

2021
Taylor and Francis London [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/31522  doi:10.1080/10448632.2021.1997309

Abstract: Magnetic skyrmions are two-dimensional, vortex-like spin states that carry a topological number. Due to their particle nature and emergent electromagnetic properties, skyrmions are viewed as promising candidates for information transport in future spintronics devices. A skyrmion can be described by the internal degrees of freedom of the spin configuration, termed helicity and vorticity. The two main types of skyrmions, Bloch and Néel-type, are characterized by the helicity , which is defined by the angle between the spin-modulation vector q and the spin-rotation plane [1]. Bloch-type skyrmions are characterized by a proper-screw type spin configuration with  = ±/2 (Fig. 1(a) and (b)) while Néel-type skyrmions have a cycloidal spin modulation with  = 0 or  (Fig. 1(c) and (d)). Recent studies have shown that this internal spin rotational form plays a key role in the current-induced control of skyrmions through spin-induced torques. To harness the spintronic functionalities of skyrmions, developing experimental techniques to determine the helicity is fundamentally important.

Keyword(s): Magnetic Materials (1st) ; Magnetism (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Experiment(s):

1. KWS-1: Small angle scattering diffractometer (NL3b)

Appears in the scientific report 2022

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Database coverage:
; Ebsco Academic Search ; SCOPUS

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