The addition of SiO_2 in CoPt alloy thin film impede the growth of CoPt grain, the parameter of CoPt grain decreased from 52nm to 12nm.

 
  • SiO_2添加可以有效抑制CoPt晶粒的生长、将CoPt合金的晶粒大小从50nm左右减小到12nm左右;SiO_2的掺杂提高了CoPt合金的有序化温度;含20vol.
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