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Magnetic field and thermal reversal properties of exchange-bias recording films

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7 Author(s)
Shan, Z.S. ; Data Storage Inst., Singapore ; Jin, D. ; Ren, H.B. ; Wang, J.P.
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Effect of exchange-bias coupling between ferromagnetic (FM) layer and antiferromagnetic (AFM) underlayer on the H-field and thermal reversal properties was studied analytically by minimizing the free energy E(α,β) of the bilayer system. Correlation between the effective-thermal-stability-factor (KuV*/kBT)eff, coercivity HC, and parameters of the bilayer system is presented. Emphasis is on analyzing the energy-barrier EB influence upon the moment reversal properties

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Magnetics, IEEE Transactions on  (Volume:37 ,  Issue: 4 )