Magnetism and magneto-transport studies in sonochemically prepared amorphous Co100−xPtx nano alloys |
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Authors: | Manju Lata Rao |
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Institution: | Materials Chemistry Laboratory, Indian Institute of Technology Kanpur, Kanpur 208016, India |
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Abstract: | Bulk amorphous Co(100−x)Ptx (0≤x≤50) nano-alloys have been synthesized using high frequency ultrasound, displaying single domain (4-5 nm) behavior wherein weakly exchange-coupled particles lead to a field-dependent resistivity behavior. Magneto-resistivity is correlated to the order-disorder parameter in these powder compacts. The plot of Δρ/ρ0 as a function of reduced magnetization indicates that all the systems are weakly exchange coupled. |
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Keywords: | 61 43 &minus j 61 43 Er 61 46 +w 67 57 Hi |
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