All-magnetic control of skyrmions in nanowires by a spin wave

作者：Zhang, Xichao^*; Ezawa, Motohiko; Xiao, Dun; Zhao, G. P.; Liu, Yaowen; Zhou, Yan

来源：Nanotechnology, 2015, 26(22): 225701.

DOI：10.1088/0957-4484/26/22/225701

• skyrmion
• spin wave
• Dzyaloshinskii-Moriya interaction
• Thiele equation

Magnetic skyrmions are topologically protected nanoscale objects, which are promising building blocks for novel magnetic and spintronic devices. Here, we investigate the dynamics of a skyrmion driven by a spin wave in a magnetic nanowire. It is found that (i) the skyrmion is first accelerated and then decelerated exponentially; (ii) it can turn L-corners with both right and left turns; and (iii) it always turns left (right) when the skyrmion number is positive (negative) in the T-and Y-junctions. Our results will be the basis of skyrmionic devices driven by a spin wave.

• 出版日期2015-6-5
• 单位四川师范大学; 香港大学; 同济大学; 中国科学院; 中国科学院宁波材料技术与工程研究所