Chaotic motion of a magnetic domain structure under an alternating field

Michinobu Mino, Yousuke Yamamoto

Research output: Contribution to journalArticle

Abstract

Magnetic domains in a garnet thin film under alternating magnetic fields up to 2000 Hz have been investigated at room temperature. Domain structures and motions have been observed. When the field frequency is low, the magnetization changes periodically, and the domain pattern has a labyrinth structure. When the amplitude and the driving frequency of the field are increased, irregular oscillations of the magnetization appear, and chaotic motions of the domain are observed. In this region, domain structures have a disk-like shape. These disks grow from some crystal defects, and a growing point shows a branch-like form.

Original languageEnglish
Pages (from-to)605-607
Number of pages3
JournalJournal of the Korean Physical Society
Volume63
Issue number3
DOIs
Publication statusPublished - Aug 2013

Fingerprint

magnetic domains
disks (shapes)
labyrinth
magnetization
crystal defects
garnets
low frequencies
oscillations
room temperature
thin films
magnetic fields

Keywords

  • Chaos
  • Domain walls
  • Magnetic domains
  • Magnetic hysteresis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Chaotic motion of a magnetic domain structure under an alternating field. / Mino, Michinobu; Yamamoto, Yousuke.

In: Journal of the Korean Physical Society, Vol. 63, No. 3, 08.2013, p. 605-607.

Research output: Contribution to journalArticle

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