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alloys alternating anisotropy annealing applied field atom axis BH)max Bmax Bozorth carbon cent nickel cent silicon cent silicon-iron Chapter Cioffi cobalt cooling cube-edge direction Curie Curie point Curie temperature demagnetizing domain boundaries dynamo easy direction eddy current effect electrical resistivity electrons energy equation ferrites ferromagnetic field strength flux density frequency given H A/cm heat-treatment high coercivity high permeability hot-rolled hydrogen hysteresis loop impurities increase induction initial permeability internal strains ions J/m³ Journ K₁ K₂ lattice magnetic anisotropy magnetic field magnetic moment magnetic properties magnetization curve magnetostriction martensitic maximum relative permeability metal Mumetal Néel negative netization nickel nickel-iron alloys observed obtained occurs orbital particles Permalloy permanent magnet material Phys plane polycrystalline preferred orientation reduce referred remanence rolling direction rotation sample saturation magnetization saturation value sheet shown in Fig shows silicon steel single crystal single domain specimen spins stress structure theory thickness tion torque Wb/m² Yensen Zeits zero