Field evolution of tilted vortex cores in exchange-biased ferromagnetic dots

Konstantin Yu Guslienko, Axel Hoffmann

Research output: Contribution to journalArticlepeer-review


We developed an analytical model for the magnetization reversal via vortex nucleation and annihilation in double-layer ferromagnetic/antiferromagnetic cylindrical dots. The coupling of the ferromagnet to the antiferromagnet is modeled by means of an interfacial exchange field. The nonuniformity of the magnetization reversal mode perpendicular to the layers is explicitly included and results in a tilted vortex core (tilted Bloch line). The vortex core tilt results in an asymmetry of the nucleation and annihilation fields, which are calculated as a function of the dot geometry.

Original languageEnglish (US)
Article number107203
JournalPhysical review letters
Issue number10
StatePublished - Sep 15 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Field evolution of tilted vortex cores in exchange-biased ferromagnetic dots'. Together they form a unique fingerprint.

Cite this