Compositional stability of FePt nanoparticles on SiO2/Si during annealing
Compositional stability of FePt nanoparticles on SiO2/Si during annealing
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DOI:
10.1063/1.2170064
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发表时间:
2006-04
影响因子:
3.2
通讯作者:
B. Yao;R. Petrova;R. Vanfleet;K. Coffey
中科院分区:
文献类型:
--
作者:
B. Yao;R. Petrova;R. Vanfleet;K. Coffey
The loss of Fe due to oxidation or diffusion into the substrate can prevent the successful preparation of well-ordered, stoichiometric, FePt nanoparticles. In this work we report the composition changes during annealing observed for small (<10nm) FePt nanoparticles on thermally grown SiO2 layers on Si wafer substrates. Additionally, we describe the use of a controlled reducing gas mixture, Ar+H2+H2O, to reduce the loss of Fe.