This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.119.197205 in citations.
Please use the identifier: http://hdl.handle.net/2128/15889 in citations.
Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk
Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk
A target Skyrmion is a flux-closed spin texture that has twofold degeneracy and is promising as a binary state in next generation universal memories. Although its formation in nanopatterned chiral magnets has been predicted, its observation has remained challenging. Here, we use off-axis electron ho...
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Personal Name(s): | Zheng, Fengshan |
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Li, Hang / Wang, Shasha / Song, Dongsheng / Jin, Chiming / Wei, Wenshen / Kovács, András / Zang, Jiadong / Tian, Mingliang / Zhang, Yuheng (Corresponding author) / Du, Haifeng / Dunin-Borkowski, Rafal | |
Contributing Institute: |
Mikrostrukturforschung; PGI-5 Physik Nanoskaliger Systeme; ER-C-1 |
Published in: | Physical review letters, 119 (2017) 19, S. 197205 |
Imprint: |
College Park, Md.
APS
2017
|
DOI: |
10.1103/PhysRevLett.119.197205 |
PubMed ID: |
29219505 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/15889 in citations.
A target Skyrmion is a flux-closed spin texture that has twofold degeneracy and is promising as a binary state in next generation universal memories. Although its formation in nanopatterned chiral magnets has been predicted, its observation has remained challenging. Here, we use off-axis electron holography to record images of target Skyrmions in a 160-nm-diameter nanodisk of the chiral magnet FeGe. We compare experimental measurements with numerical simulations, demonstrate switching between two stable degenerate target Skyrmion ground states that have opposite polarities and rotation senses, and discuss the observed switching mechanism. |