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Title: Electronic noise of a single skyrmion
To enable the practical use of skyrmion-based devices, it is essential to achieve a balance between energy efficiency and thermal stability while also ensuring reliable electrical detection against noise. Understanding how a skyrmion interacts with material disorder and external perturbations is thus essential. Here, we investigate the electronic noise of a single skyrmion under the influence of thermal fluctuations and spin currents in a magnetic thin film. We detect the thermally induced noise with a 1/ f γ signature in the strong pinning regime but a random telegraph noise in the intermediate pinning regime. Both the thermally dominated and current induced telegraph like signals are detected in the weak pinning regime. Our results provide a comprehensive electronic noise picture of a single skyrmion, demonstrating the potential of noise fluctuation as a valuable tool for characterizing the pinning condition of a skyrmion. These insights could also aid in the development of low-noise and reliable skyrmion-based devices.  more » « less
Award ID(s):
1936221
NSF-PAR ID:
10490252
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
American Physical Society
Date Published:
Journal Name:
Physical Review B
Volume:
108
Issue:
9
ISSN:
2469-9950
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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