Magnetic skyrmion diode: Unidirectional skyrmion motion via symmetry breaking of potential energy barriers

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 geometr...

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Bibliographic Details
Published in:Physical review. B 2021-08, Vol.104 (6), Article L060408
Main Authors: Jung, Dae-Han, Han, Hee-Sung, Kim, Namkyu, Kim, Ganghwi, Jeong, Suyeong, Lee, Sooseok, Kang, Myeonghwan, Im, Mi-Young, Lee, Ki-Suk
Format: Article
Language:English
Subjects:
Broken symmetry
Data processing
Hypothetical particles
Nanoelectronics
Nanotechnology devices
Particle theory
Potential energy
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Summary: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.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.104.L060408