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The magnetization of Pd and Au nano-particles with a diameter of around 3 nm was measured down to 4.2 K. The data of magnetization of both nano-particles show an unexpectedly large magnetic moment of about 20 spins per particle. This result can not be understood by so-called odd/even electron number effect and Stoner's enhancement model. The result might suggest the existence of some common and characteristic...
In order to investigate the alloying effect in Ni/Pd nanoparticles, a special chemical reaction method has been developed to generate a sufficient number of well-conformed Pd ultra-fine particles. Ni concentration dependence on magnetization reveals the existence of a giant magnetic moment effect, where the critical concentration of 6.3 at% is higher than the bulk state one. The higher harmonics...
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