Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session W54: Skyrmion Based Devices
3:00 PM–5:48 PM,
Thursday, March 9, 2023
Room: Room 306
Sponsoring
Unit:
GMAG
Chair: Hamed Vakili, University of Nebraska - Lincoln
Abstract: W54.00001 : Controlling Creation, Annihilation, and Movement of Magnetic Skyrmions Studied by Soft X-ray Microscopy*
3:00 PM–3:36 PM
Presenter:
Mi-Young Im
(Lawrence Berkeley National Laboratory)
Author:
Mi-Young Im
(Lawrence Berkeley National Laboratory)
In order to realize skyrmion-based electronics, effective creation and deletion of skyrmions at room temperature (RT), controlling skyrmion configuration and movement of skyrmions are key requirements. These issues are not only relevant for the technological applications of skyrmions, but also scientifically important for comprehensive understanding fundamental physics and topological properties of magnetic skyrmions and topological structures in general.
We have addressed these important issues mainly based on X-ray microscopy at a full-field soft X-ray transmission microscope beamline (XM-1, BL6.1.2 at ALS), which is one of the powerful characterization techniques for the study of chiral magnetic structures and nanospin systems in general.
We demonstrated that efficient creation and deletion of RT skyrmions by charge, heat, spin torque can be achieved [2,3]. Additionally, controlling size and density of skyrmions and manipulating movement of magnetic skyrmions through a desired path, which are essential for applications in memory, diode, and logic gate, were extensively studied [4-6].
*Works at LBNL were supported by the U.S. Department of Energy (DE-AC02-05CH11231).
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