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Skyrmion transport driven by pure voltage generated strain gradient

Authors :
Shan Qiu
Jia-Hao Liu
Ya-Bo Chen
Yun-Ping Zhao
Bo Wei
Liang Fang
Source :
Chinese Physics B. 31:117701
Publication Year :
2022
Publisher :
IOP Publishing, 2022.

Abstract

The magnetic skyrmion transport driven by pure voltage-induced strain gradient is proposed and studied via micromagnetic simulation. Through combining the skyrmion with multiferroic heterojunction, a voltage-induced uniaxial strain gradient is adjusted to move skyrmions. In the system, a pair of short-circuited trapezoidal top electrodes can generate the symmetric strain. Due to the symmetry of strain, the magnetic skyrmion can be driven with a linear motion in the middle of the nanostrip without deviation. We calculate the strain distribution generated by the trapezoidal top electrodes pair, and further investigate the influence of the strain intensity as well as the strain gradient on the skyrmion velocity. Our findings provide a stable and low-energy regulation method for skyrmion transport.

Subjects

Subjects :
General Physics and Astronomy

Details

ISSN :
16741056
Volume :
31
Database :
OpenAIRE
Journal :
Chinese Physics B
Accession number :
edsair.doi...........84d976adfb23cc2b348d977ce0c182dc
Full Text :
https://doi.org/10.1088/1674-1056/ac8927