Magnetic bubbles in FePt nanodots with perpendicular anisotropy

C. Moutafis, S. Komineas, C. A.F. Vaz, J. A.C. Bland, T. Shima, T. Seki, K. Takanashi

研究成果: Article査読

54 被引用数 (Scopus)

抄録

We present experimental evidence, by magnetic force microscopy, for the existence of magnetic bubbles in suitably designed high-quality circular FePt nanodots. We specifically study dots of sizes where this fundamental magnetic state is a ground state and it is spontaneously created. We also observe triple-domain states consisting of concentric rings with alternating magnetization. A numerical study confirms the range of stability of the observed magnetic states and predicts the phase diagram in parameter space. Differences in the topology of these states imply distinct dynamical behavior, providing the basis for fundamental dynamical studies.

本文言語English
論文番号104426
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
76
10
DOI
出版ステータスPublished - 2007 9 24

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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