Giant exchange bias Magnetic thin films Unidirectional anisotropy
Issue Date:
2007
Publisher:
Journal of Magnetism and Magnetic Materials
Citation:
Volume: 315, Issue: 2, Page : 82-88
Abstract:
A systematic study of exchange bias in MnPd/Co bilayers has been carried out, where the
dependences of exchange bias, unidirectional anisotropy constant and coercivity on the thicknesses of MnPd
and Co layers were investigated. A huge unidirectional anisotropy constant, JK = 2.5 erg / cm2 was
observed, which is in reasonable agreement with the theoretical prediction based on the model by
Meiklejohn and Bean. The angular dependences of exchange bias field and coercivity have also been
examined showing that both exchange bias and coercivity follow 1 / cos ? rule. ?? 2007 Elsevier B.V. All
rights reserved.
