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Exchange bias effect of ferro-/antiferromagnetic heterostructures

Domenii publicaţii > Fizica + Tipuri publicaţii > Capitol de carte

Autori: Florin Radu and Hartmut Zabel

Editorial: H. Zabel, Samuel D. Bader, Springer-Verlag Berlin Heidelberg, Magnetic Heterostructures; Advances and Perspectives in Spinstructures and Spintransport; Series: Springer Tracts in Modern Physics, 227, p.97-184, 2008.


The exchange bias effect, discovered more than fifty years ago, is a fundamental interfacial property, which occurs between ferromagnetic and antiferromagnetic materials. After intensive experimental and theoretical research over the last ten years, a much clearer picture has emerged about this effect, which is of immense technical importance for magneto-electronic device applications. In this review we start with the discussion of numerical and analytical results of those models which are based on the assumption of coherent rotation of magnetization. The behavior of the ferromagnetic and antiferromagnetic spins during the magnetization reversal, as well as the dependence of the critical fields on characteristic parameters such as exchange stiffness, magnetic anisotropy, interface disorder etc. are analyzed in detail and the most important models for exchange bias are reviewed. Finally recent experiments in the light of the presented models are discussed.

Cuvinte cheie: Magnetic heterostructures,Magnetic interfaces,Magnetic nanostructures,Magneto-electronics,Proximity effects,Spin injection,Spintronics,Thin magnetic films