Spontaneous domain wall motion at zero external magnetic field in ferromagnetic nanowire

Dede Djuhana, Hong Guang Piao, Je Ho Shim, Sang Hyuk Lee, Su Hyeong Jun, Seong Cho Yu, Suhk Kun Oh, Dong Hyun Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have explored a spontaneous domain wall motion in ferromagnetic nanowire at zero external magnetic field by means of micromagnetic simulation. Very interestingly, even with no external magnetic field, a spontaneous domain wall motion is observed with a speed about few tens of m/s, which is significant and not negligible in analysis of the domain wall dynamics on nanowires. The spontaneous zero-field wall motion is explained based on the minimization condition of the magnetostatic energy, preferring to have a wire magnetically saturated. Average speed of the spontaneous wall motion is found to increase as the wire thickness increases.

Original languageEnglish
Article number5393126
Pages (from-to)217-219
Number of pages3
JournalIEEE Transactions on Magnetics
Volume46
Issue number2
DOIs
Publication statusPublished - 1 Feb 2010

Keywords

  • Ferromagnetic wire
  • Magnetostatic energy
  • Micromagnetic simulation
  • Spontaneous domain wall motion

Fingerprint

Dive into the research topics of 'Spontaneous domain wall motion at zero external magnetic field in ferromagnetic nanowire'. Together they form a unique fingerprint.

Cite this