Development of NanoCAP technology for high-density recording
Development of NanoCAP technology for high-density recording
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开发用于高密度记录的NanoCAP技术
DOI：
10.1109/tmag.2005.855247
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发表时间：
2005
影响因子：
2.1
通讯作者：
M. Kishimoto
中科院分区：
文献类型：
--
作者：
Y. Sasaki;N. Usuki;K. Matsuo;M. Kishimoto
对于高密度记录带，NanoCAP是在NH/sub 3/气体气氛中使用共沉淀和氮化处理开发的。每个颗粒具有直径约17 nm的球形形状和核-壳结构。核和壳分别主要由Fe/sub 16/N/sub 2/和含Al和Y的氧化物组成。其饱和磁化强度和矫顽力分别为85.5A/spl middot/m/sup 2//kg（85.5emu/g）和227 kA/m（2850 Oe）。矫顽力是目前使用的针状颗粒的更高的值，并且从室温到323 K是稳定的。较高的矫顽力源于Fe/sub 16/N/sub 2/的单轴磁各向异性。
For high-density recording tape, NanoCAP was developed using co-precipitation and nitridation treatment in an NH/sub 3/ gas atmosphere. Each particle has a spherical shape with a diameter of about 17 nm and a core-shell structure. The core and shell mainly consist of the Fe/sub 16/N/sub 2/ and oxides containing Al and Y, respectively. The saturation magnetization and the coercive force are 85.5 A/spl middot/m/sup 2//kg (85.5emu/g) and 227 kA/m (2850 Oe), respectively. The coercive force is a higher value that of the needle-shaped particles currently used and is stable from room temperature to 323 K. The higher coercive force originates from an uniaxial magnetic anisotropy of the Fe/sub 16/N/sub 2/.