MAGNETIC PROPERTIES AND CRYSTALLIZATION OF AMORPHOUS ALLOYS Co_(90-x)Cr_xZr_(10)

Abstract

Abstract: Curie temperature of amorphous alloys Co_(90-x)Cr_x Zr_(10) decreases linearly with increas- ing x.Average magnetic moment per magnetic atom Co or Cr is 1.51 μB or -3.62 μB respectively.The temperature dependence of spontaneous magnetization at low temper- atures is in agreement with Bloch's T~(3/2) law.The spin wave stiffness constant decreases with increasing x from 4 to 20.The range of interaction is 2—3 atoms for x=4 and nearest neighbour atom for x=20.The crystallization temperature increases mono- tonically with increasing x.It may relate to the average number of outer electrons per atom.The crystalline phase components of heat-treated alloys were analyzed by X-ray diffration and thermomagnetic measurement.

Key words: amorphous state, magnetic, properties, crystallization, Co_(90)-_xCr_xZr_(10)

HU Fengxia State Key Laboratory of Magnetism,Institute of Physics,Academia Sinica,Beijing,ChinaCHEN Jinchang Beijing Teacher's College,Beijing,ChinaSHEN Baogen GUO Huiqun State Key Laboratory of Magnetism,Institute of Physics,Academia Sinica,Beijing,China. MAGNETIC PROPERTIES AND CRYSTALLIZATION OF AMORPHOUS ALLOYS Co_(90-x)Cr_xZr_(10)[J]. Acta Metallurgica Sinica (English Letters), 1992, 5(10): 300-305.

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MAGNETIC PROPERTIES AND CRYSTALLIZATION OF AMORPHOUS ALLOYS Co_(90-x)Cr_xZr_(10)

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