1. Magnetic skyrmion diode: Unidirectional skyrmion motion via symmetry breaking of potential energy barriers
- Author
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Namkyu Kim, Suyeong Jeong, Mi-Young Im, Myeonghwan Kang, Dae-Han Jung, Sooseok Lee, Ganghwi Kim, Hee-Sung Han, and Ki-Suk Lee
- Subjects
Physics ,Condensed matter physics ,Spintronics ,Fluids & Plasmas ,Skyrmion ,Motion (geometry) ,Magnetic skyrmion ,Potential energy ,Engineering ,Affordable and Clean Energy ,Physical Sciences ,Chemical Sciences ,Symmetry breaking ,Diode - Abstract
We realize a magnetic skyrmion diode operated by a unidirectional skyrmion transport that flows in only one direction, which is highly significant for information processing in spintronic and nanoelectronic devices. We easily control the skyrmion transport by engineering asymmetric shapes of geometric structures. Here, we present a simple method to describe the underlying mechanism behind the unidirectional skyrmion transport by characterizing the topography of potential energy surfaces from a purely geometric perspective. Our approach enables a deeper physical insight into skyrmion transport manipulation and efficient design of skyrmion-based devices in geometric structures.
- Published
- 2021
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