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Magnetization‐induced optical Second Harmonic Generation (MSHG) from an exchange‐biased CoO/Fe multilayer produces an asymmetrical hysteresis loop that indicates different magnetization reversal behaviour between the interface and the bulk ferromagnet. A more careful analysis of the data demonstrates that this asymmetry is in fact due to a quadratic dependence on the magnetization of the MSHG intensity. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Valev et al. (2005) studied this question.
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