EXCHANGE -COUPLED GdFeCo/DyFeCo MAGNETOOPTICAL BILAYERS WITH PLANAR AND PERPENDICULAR ANISOTROPY

Pinned synthetic ferrimagnets with perpendicular anisotropy and tuneable exchange bias

Influence of interface exchange coupling in perpendicular anisotropy [Pt ÕCo]50 ÕTbFe bilayers

S. Mangin,1,2 T. Hauet,1,2 P. Fischer,3 D. H. Kim,4 J. B. Kortright,5 K. Chesnel,6 E. Arenholz,6 and Eric E. Fullerton7 1San Jose Research Center, Hitachi Global Storage Technology, San Jose, California 95120, USA 2Laboratoire de Physique des Matériaux, Nancy Université, Nancy, France F-54506 3Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 4Depar...

Magnetic Properties of Exchange-Biased Multilayer With Perpendicular Magnetic Anisotropy

Perpendicular exchange-biased and multilayers have been fabricated, changing the thickness of the cobalt that is next to the IrMn layer. The crystal structure, interface roughness and magnetic properties were characterized by X-ray diffraction (XRD), X-ray reflectivity (XRR), atomic force microscopy (AFM) and extraordinary Hall Effect (EHE). The multilayers are flat, and the roughness is about ...

Exchange Bias in FeF20-CoPt heterosystems with perpendicular anisotropy

The exchange bias e!ect is measured in heterosystems with perpendicular anisotropy consisting of Co/Pt multilayers on top of the (0 0 1) face of a FeF single crystal. The resulting exchange "eld H exhibits a strong dependence on temperature and the axial freezing "eld, H . Within the framework of an Ising-type model, the H vs. 1 as well as the H vs.H data are explained in terms of the microscop...

Intrinsic perpendicular anisotropy and exchange biasing in CoO/permalloy multilayers

For permalloy/CoO multilayers, the exchange field and the coercivity of the perpendicular and longitudinal exchange biasing have been found to decrease with increasing temperature. After zero field cooling, perpendicular magnetic anisotropy is observed. For small permalloy layer thickness, perpendicular anisotropy film can be established at low temperatures. r 2004 Elsevier B.V. All rights rese...