Magnetic interaction of submicron-sized ferromagnetic rings in one-dimensional array

T. Miyawaki, K. Toyoda, M. Kohda, A. Fujita, J. Nitta

研究成果: Article査読

22 被引用数 (Scopus)

抄録

Magnetization characteristics of submicron-sized ferromagnetic rings in a one-dimensional array with various inter-ring distances, lx, were investigated by the magneto-optical Kerr effect and micromagnetic simulation. The onion (vortex)-to-vortex (onion) transition fields were found to be proportional to 1/lxn with n=1.36 (0.79), instead of being a simple dipole interaction model (n = 3). It was demonstrated that the transition mechanism and the inter-ring dependence are governed by the energy gain originating from the deformation of the local vortex. As a result, exchange energy as well as magnetostatic energy play important roles in the magnetization reversal of ring array.

本文言語English
論文番号122508
ジャーナルApplied Physics Letters
89
12
DOI
出版ステータスPublished - 2006

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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