2004
DOI: 10.1016/j.jmmm.2004.05.009
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Micromagnetic model of magnetization reversal of magnetically hard ultrathin dots and stripes

Abstract: 13 pages in publication journalInternational audienceWe propose improvements and extensions to an analytical model of magnetization reversal in ultrathin flat dots and stripes with in-plane uniaxial anisotropy. Owing to the localized character of nucleation volumes in hard magnetic materials, we use the concept of edge demagnetizing torque, where all demagnetizing effects are applied at the dot's edge. The magnetization state and the reversal field hr are predicted as a function of magnetization, dot thickness a… Show more

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Cited by 2 publications
(1 citation statement)
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“…As a consequence, the switching field of even very small samples may differ from the prediction of the macrospin model. Some analytical models have been developed for soft [68] of hard [69,70] magnetic materials. It is moreover very likely that these effects are amplified by the surface anisotropy term and the exchange reduction at the surfaces [71,72].…”
Section: Single Domain Statesmentioning
confidence: 99%
“…As a consequence, the switching field of even very small samples may differ from the prediction of the macrospin model. Some analytical models have been developed for soft [68] of hard [69,70] magnetic materials. It is moreover very likely that these effects are amplified by the surface anisotropy term and the exchange reduction at the surfaces [71,72].…”
Section: Single Domain Statesmentioning
confidence: 99%