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

Autor:	Namkyu Kim, Suyeong Jeong, Mi-Young Im, Myeonghwan Kang, Dae-Han Jung, Sooseok Lee, Ganghwi Kim, Hee-Sung Han, Ki-Suk Lee
Rok vydání:	2021
Předmět:	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
Zdroj:	Physical Review B, vol 104, iss 6
ISSN:	2469-9969 2469-9950
DOI:	10.1103/physrevb.104.l060408
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beeff9f22af6821cb18c63459ec4eb90 https://doi.org/10.1103/physrevb.104.l060408 Zobrazit plný text záznamu