Single Domain Wall Propagation in 2D Magnetic Nano-traps Under Field Pulses

Various domain wall traps were designed, patterned and exploited by means of Lorentz microscopy and magnetic simulation. Those structures consist of two straight nanowires and connecting pads with different shapes. The connected pads linking those nanowires were varied in shapes and geometries. Doma...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2020-09, Vol.89 (9), p.94802
Main Authors: Hoang, Duc-Quang, Cao, Xuan-Huu, Nguyen, Hoai-Thuong, Dao, Vinh-Ai
Format: Article
Language:English
Subjects:
Domain walls
Nanowires
Propagation
Pulse propagation
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Summary:Various domain wall traps were designed, patterned and exploited by means of Lorentz microscopy and magnetic simulation. Those structures consist of two straight nanowires and connecting pads with different shapes. The connected pads linking those nanowires were varied in shapes and geometries. Domain walls can be created using continuous fields and those created walls are propagated under field pulses of 100 ns. Characteristics of wall propagation were studied, and results of which indicate that using a bundle of field pulses, a domain wall can be propagated from the first nanowire to the second one. The results provide an insight into the dynamic properties of a domain wall propagated between those two nanowires. Results of this work are vital to design a novel domain wall trap which supports a reproducible domain wall motion and are of technological interest in providing a better understanding of domain wall propagation under field pulses.
ISSN:0031-9015
1347-4073
DOI:10.7566/JPSJ.89.094802