Swing casting boost for confined domain wall breathing

Katsuyoshi Matsushita, Munetaka Sasaki, Tsuyoshi Chawanya

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A steady breathing mode excitation of the confined domain wall under dc is a candidate signal source in future telecommunication devices. The breathing mode exhibits a non-linear response to dc with a threshold. Before driving the breathing mode, if we resonantly swing the domain wall by ac, the domain wall is expected to be cast to a breathing mode even below the threshold dc. To examine the effect of "swing casting", we investigate the resonant mode under ac. We show that overdamped, underdamped, chaotic, and periodic running modes emerge depending on the applied ac amplitude. Furthermore, we demonstrate that swing casting achieves the steady breathing mode excitation down to one quarter of the threshold dc.

Original languageEnglish
Article number013801
Journaljournal of the physical society of japan
Volume83
Issue number1
DOIs
Publication statusPublished - 2014 Jan 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Swing casting boost for confined domain wall breathing'. Together they form a unique fingerprint.

Cite this