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.
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General Framework for Array Noise Analysis and Noise Performance of a Two-Element Interferometer with a Mutual-Coupling Canceler
- Award ID(s):
- 1902283
- NSF-PAR ID:
- 10338694
- Date Published:
- Journal Name:
- IEEE Transactions on Antennas and Propagation
- ISSN:
- 0018-926X
- Page Range / eLocation ID:
- 1 to 1
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1109/TAP.2022.3165540
