Magnetism of nanometer-scale iron particles arrays (invited)
作者： S. Wirth , S. von Molnár , M. Field , D. D. Awschalom
DOI: 10.1063/1.369957
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摘要: The magnetization behavior in arrays of small ferromagnetic iron particles is investigated. Arrays were fabricated by a combination chemical vapor deposition and scanning tunneling microscopy. This method allows variety particle to be grown differing height, diameter, or arrangement. Moreover, the can directly onto different materials such as Au permalloy. Magnetic measurements conducted Hall magnetometery up 100 K compared switching field means magnetic force microscopy at room temperature. reversal mechanisms studied from curves measured for an arbitrary angle ϑ applied with respect long axis particles. By analyzing reversible rotation, particles’ core diameter shape anisotropy could determined. A phenomenological model based on thermally activated was introduced experimental d...
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