Control of vortex chirality in regular polygonal nanomagnets using in-plane magnetic field

S. Yakata, M. Miyata, S. Nonoguchi, Hirofumi Wada, Takashi Kimura

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The authors have proposed a control method of the magnetic vortex chirality in regular polygonal nanomagnets with an odd number of sides. The asymmetric nucleation energy of the vortex from the uniformly magnetized state enables us to simply control the vortex chirality by an in-plane magnetic field. The reliability of the proposed method has been numerically and experimentally confirmed in the triangle, pentagonal, heptagonal, and nonagonal Permalloy nanomagnets. The authors also confirmed that the vortex chirality is uncontrollable when the number of the side is even.

Original languageEnglish
Article number222503
JournalApplied Physics Letters
Volume97
Issue number22
DOIs
Publication statusPublished - Nov 29 2010

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chirality
vortices
magnetic fields
Permalloys (trademark)
triangles
nucleation
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Control of vortex chirality in regular polygonal nanomagnets using in-plane magnetic field. / Yakata, S.; Miyata, M.; Nonoguchi, S.; Wada, Hirofumi; Kimura, Takashi.

In: Applied Physics Letters, Vol. 97, No. 22, 222503, 29.11.2010.

Research output: Contribution to journalArticle

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