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The Magnetic Properties and Effective Magnetic Anisotropy of Fe-Ni Ultrafine Particles

         

摘要

1 Introduction Fe Nialloyiswidelyusedassoftmagneticmaterialsforalongtime .Itsmagneticpropertiesasinitialperme abilityμiandcoercivityforceHcdependstronglyonthechemicalcompositionandtreatmentlikequenchingfromhightemperature .Asultrafineparticleisrevealedre centlytohavemanyinterestingpropertiesabsentinbulkmaterials ,itisofsignificancetoinvestigateFe Nisys temofultrafineparticle . InbulkFe10 0 -xNixalloy ,thephaseconstitutionde pendsonNicontentx .Itconsistsofsinglephaseγ(f.c.cstructure)whenx >50andsinglephaseα ...

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