Magnetic properties of nanometer-size CoPt particles
Magnetic properties of nanometer-size CoPt particles
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DOI：
10.1063/1.361571
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发表时间：
1996-04
影响因子：
3.2
通讯作者：
S. Liou;Yi Liu;S. Malhotra;M. Yu;D. Sellmyer
中科院分区：
文献类型：
--
作者：
S. Liou;Yi Liu;S. Malhotra;M. Yu;D. Sellmyer
我们已经制备了纳米尺寸的隔离的CoPt颗粒。通过在550-800 °C的温度范围内退火薄膜形成直径在100-300 nm范围内的颗粒。薄膜的磁性高达30 kOe。结果表明，由于微晶尺寸接近无相互作用的单畴颗粒，因此获得了高的磁性。
We have prepared nanometer‐size, isolated CoPt particles. The particles in the range of 100–300 nm in diameter were formed by annealing thin films in the temperature range of 550–800 °C. Films with magnetic coercivity as high as 30 kOe were achieved. The results indicate that the high magnetic coercivity was obtained because the crystallite size approaches that of noninteracting single‐domain particles.