Fast moving multiple magnetic bits in permalloy cylindrical nanowires

Feng Sheng Wu, Lance Horng, Jong Ching Wu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Controlling the movement of domain walls in magnetic nanowires is important due to the impact on the viability of data storage devices. A series of micromagnetic simulations of multiple current-induced domain walls motion (CIDWM) have been performed. Multiple CIDWM in the cylindrical permalloy nanowires display outstanding dynamic properties. In cases of different domain bits, we observed the motion of transverse domain walls (TDWs) did not show oscillatory behavior. The domain walls only changed their positions in the same direction as they propagated and kept the distance between the walls almost the same, with their internal magnetic structure unchanged. Furthermore, we have found that the TDW velocity in cylindrical thin wires was closely related to the wire thickness and showed a strong dependence on the Gilbert damping factor.

Original languageEnglish
Article number6567989
JournalIEEE Transactions on Magnetics
Volume50
Issue number1
DOIs
Publication statusPublished - 2014 Jan 1

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Domain walls
Nanowires
Induced currents
Wire
Magnetic structure
Damping

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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Fast moving multiple magnetic bits in permalloy cylindrical nanowires. / Wu, Feng Sheng; Horng, Lance; Wu, Jong Ching.

In: IEEE Transactions on Magnetics, Vol. 50, No. 1, 6567989, 01.01.2014.

Research output: Contribution to journalArticle

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