期刊
APPLIED PHYSICS LETTERS
卷 102, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4809751
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资金
- Los Alamos Laboratory Directed Research and Development Program [20110138ER]
- NNSA of the U.S. DoE at LANL [DE-AC52-06NA25396]
A skyrmion in a nanosized disk of a chiral magnet can be used as a bit of information. To this end, it is desirable to control the creation and removal of a skyrmion only by currents without using external magnetic fields. Here, we propose to create a skyrmion by applying a current pulse to a nanodisk. The skyrmion can be removed from the disk by applying a dc current. We show that the dynamics of the created skyrmion can lead to a rectification effect, in which a dc voltage is generated by the motion of skyrmion in the presence of an ac current. (C) 2013 AIP Publishing LLC.
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