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Coercivity mechanism in (Co/Pt) and (Co/Pd) multilayers

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1 Author(s)
Suzuki, T. ; IBM Res. Div., Almaden Res. Center, San Jose, CA, USA

The coercivity mechanism of multilayer (Co/Pt) and (Co/Pd) is discussed based on the phenomenological micromagnetic theory and the magnetic relaxation treatment. Based on the micromagnetic theory, the pinning size of the order of a few Å is found for both (Co/Pt) and (Co/Pd), but about 100 Å for an amorphous TbFeCo film. On the other hand, the magnetic relaxation approach estimates the Barkhausen volume of the order of 10-18cm3 for these multilayers

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Magnetics, IEEE Transactions on  (Volume:31 ,  Issue: 6 )