Domain wall dynamics in magnetic nanotubes driven by an external magnetic field

doi:10.1088/1674-1056/27/7/077505

Abstract We use the Landau-Lifshitz-Gilbert equation to investigate field-driven domain wall propagation in magnetic nanotubes. We find that the distortion is maximum as the time becomes infinite and the exact rigid-body solutions are obtained analytically. We also find that the velocity increases with increasing the ratio of inner radius and outer radius. That is to say, we can accelerate domain wall motion not only by increasing the magnetic field, but also by reducing the thickness of the nanotubes.

Keywords: domain wall magnetic nanotubes magnetic field

Received: 01 March 2018
Revised: 11 April 2018
Accepted manuscript online:

PACS:	75.78.-n	(Magnetization dynamics)
	75.40.Gb	(Dynamic properties?)
	72.25.Ba	(Spin polarized transport in metals)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61774001), the National Social Science Foundation of China (Grant No. 17BJY103), the Key Project of Scientific and Technological Research in Hebei Province, China (Grant No. ZD2015133), and the Construction Project of Graduate Demonstration Course in Hebei Province, China (Grant No. 94/220079). Peng-Bin He was supported by the Natural Science Foundation of Hunan Province, China (Grant No. 2017JJ2045).

Corresponding Authors: Zai-Dong Li, Lin-Lin Sun
E-mail: lizd@hebut.edu.cn;vickysunlin@126.com

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Zai-Dong Li(李再东), Yue-Chuan Hu(胡月川), Peng-Bin He(贺鹏斌), Lin-Lin Sun(孙琳琳) Domain wall dynamics in magnetic nanotubes driven by an external magnetic field 2018 Chin. Phys. B 27 077505

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