Reduced domain wall pinning in ultrathin Pt/Co100−xBx/Pt with perpendicular magnetic anisotropy
作者： R. Lavrijsen , G. Malinowski , J. H. Franken , J. T. Kohlhepp , H. J. M. Swagten
DOI: 10.1063/1.3280373
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摘要: We have studied the magnetization reversal process in perpendicularly magnetized ultrathin Pt/Co100−xBx/Pt films by means of magneto-optical magnetometry and microscopy. The addition boron enhances effective Barkhausen volume indicating a decrease domain-wall pinning site density and/or strength. This potentially reduces field critical current-density for depinning/motion, that could be an interesting candidate motion studies applications.
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