Journal Article

FZJ-2020-04273

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Robust nature of the chiral spin helix in Cr Nb 3 S 6 nanostructures studied by off-axis electron holography

Song, D. (Corresponding author)FZJ* ; Wang, L. (Corresponding author) ; Wang, W. ; Zheng, F.FZJ* ; Tang, J. ; Wang, S. ; Zhu, C. ; Caron, J.FZJ* ; Kovács, A.FZJ* ; Liu, Z. ; Mandrus, D. ; Tian, M. ; Du, H. ; Dunin-Borkowski, R. E.FZJ*

2020
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/26077  doi:10.1103/PhysRevB.102.064432

Abstract: Magnetic soliton crystals with layered structures that host periodic chiral helimagnetic ordering are promising candidates for spintronic nanodevices. Among them, helimagnetic CrNb3S6 is unique owing to its crystallographic chirality and monoaxial Dzyaloshinskii-Moriya interaction. It is crucial to explore its magnetic configurations and properties with respect to the temperature and thickness, especially in reduced dimensions. Here, the chiral helimagnetic ground state in CrNb3S6 nanostructures is investigated using off-axis electron holography in the transmission electron microscope. The period of the helical state is found to be independent of both temperature and specimen thickness, while the temperature dependence of the saturation magnetization is shown to follow a classical Heisenberg spin model. Monte Carlo simulations based on a discrete classical Heisenberg model reproduce the experimental observations closely, confirming the applicability of a three-dimensional Heisenberg model even in a confined specimen geometry.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)
2. 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538) (856538)
3. DFG project 392476493 - Atomare Auflösung der Spinkonfiguration an Grenzflächen funktionaler Materialien mittels Transmissionselektronenmikroskopie (392476493) (392476493)

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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