Magnetic droplet nucleation with a homochiral Néel domain wall

Sanghoon Kim, Peong Hwa Jang, Duck Ho Kim, Mio Ishibashi, Takuya Taniguchi, Takahiro Moriyama, Kab Jin Kim, Kyung Jin Lee, Teruo Ono

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We investigate the effect of the Dzyaloshinskii-Moriya interaction (DMI) on magnetic domain nucleation in a ferromagnetic thin film with perpendicular magnetic anisotropy. We propose an extended droplet model to determine the nucleation field as a function of the in-plane field. The model can explain the experimentally observed nucleation in a Co/Ni microstrip with an interfacial DMI. The results are also reproduced by micromagnetic simulation based on the string model. The electrical measurement method proposed here can be widely used to quantitatively determine the DMI energy density.

Original languageEnglish
Article number220402
JournalPhysical Review B
Volume95
Issue number22
DOIs
Publication statusPublished - 2017 Jun 12

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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