Abstract
Recently, we have shown that magnetic circular dichroism (MCD) can be used to obtain element specific magnetic hysteresis (ESMH) loops of heteromagnetic systems. By using magnetic circular dichroism (MCD) we map the three orthogonal components of the magnetic moment vector of each element of a strongly (90°) coupled Fe30Co70/Mn/Fe30Co70 single crystal trilayer heterostructure as a function of applied magnetic field. The intensity of the MCD of the Mn L2,3 absorption edges clearly shows that the Mn possesses a ferromagnetically aligned net magnetic moment. Furthermore, the individual element specific hystersis curves, when followed through the magnetic reversal process, reveals a detailed description of the magnetization reversal in the presence of both cubic anisotropy and strong exchange. This vividly demonstrates the capability of this technique to analyze the magnetic moment reversal process in the presence of strongly competing interactions.
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