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Targeted Writing and Deleting of Magnetic Skyrmions in Two-Terminal Nanowire Devices

Title
Targeted Writing and Deleting of Magnetic Skyrmions in Two-Terminal Nanowire Devices
Authors
Je, Soong-GeunThian, DicksonChen, XiaoyeHuang, LisenJung, Dae-HanChao, WeilunLee, Ki-SukHong, Jung-IlSoumyanarayanan, AnjanIm, Mi‐Young
DGIST Authors
Je, Soong-Geun; Thian, Dickson; Chen, Xiaoye; Huang, Lisen; Jung, Dae-Han; Chao, Weilun; Lee, Ki-Suk; Hong, Jung-Il; Soumyanarayanan, Anjan; Im, Mi‐Young
Issue Date
2021-02
Citation
Nano Letters, 21(3), 1253-1259
Type
Article
Author Keywords
Magnetic skyrmionskyrmion writingskyrmion deletingJoule heatingOersted fieldtwo-terminal device
Keywords
Computing technologyElectrical inputsElectrical pulseFabrication techniqueInformation carriersMicromagnetic simulationsTemporal selectivityTwo-terminal devicesNanomagnetics
ISSN
1530-6984
Abstract
Controllable writing and deleting of nanoscale magnetic skyrmions are key requirements for their use as information carriers for next-generation memory and computing technologies. While several schemes have been proposed, they require complex fabrication techniques or precisely tailored electrical inputs, which limits their long-term scalability. Here, we demonstrate an alternative approach for writing and deleting skyrmions using conventional electrical pulses within a simple, two-terminal wire geometry. X-ray microscopy experiments and micromagnetic simulations establish the observed skyrmion creation and annihilation as arising from Joule heating and Oersted field effects of the current pulses, respectively. The unique characteristics of these writing and deleting schemes, such as spatial and temporal selectivity, together with the simplicity of the two-terminal device architecture, provide a flexible and scalable route to the viable applications of skyrmions. © 2021 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/13488
DOI
10.1021/acs.nanolett.0c03686
Publisher
American Chemical Society
Related Researcher
  • Author Hong, Jung-Il Spin Nanotech Laboratory
  • Research Interests Electric and Magnetic Properties of Nanostructured Materials; Spintronics
Files:
There are no files associated with this item.
Collection:
Department of Physics and ChemistrySpin Nanotech Laboratory1. Journal Articles


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