Nano-sized disorders in hard magnetic grains and their influence on magnetization reversal at artificial Nd/Nd2Fe14B interfaces
Nano-sized disorders in hard magnetic grains and their influence on magnetization reversal at artificial Nd/Nd2Fe14B interfaces
复制标题
硬磁晶粒中的纳米尺寸紊乱及其对人工 Nd/Nd2Fe14B 界面磁化反转的影响
DOI：
10.1016/j.jmmm.2010.06.023
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发表时间：
2010
影响因子：
2.7
通讯作者：
K. Hono
中科院分区：
文献类型：
--
作者：
T. Fukagawa;T. Ohkubo;S. Hirosawa;K. Hono
利用溅射沉积Nd2Fe14B硬磁磁体抛光表面形成的人工界面，研究了硬磁Nd2Fe14B颗粒表面晶格无序对矫直力的影响。通过在550°C真空中有无Ta帽的情况下对涂层样品进行热处理，对界面结构进行了控制。纳米束电子衍射仪显示，低矫顽力样品在Nd2Fe14B相界面处有几个nm厚的无序层，而高矫顽力样品在NdOx/Nd2Fe14B界面附近显示出明确的Nd2Fe14B晶体结构。
We have investigated the effect of lattice disorders near the surface of hard magnetic Nd2Fe14B grains on coercivity using artificial interfaces created by sputter depositing Nd on polished surface of Nd–Fe–B sintered magnets. The interfacial structure was manipulated by annealing the coated samples at 550°C in vacuum with and without Ta cap. Nano-beam electron diffraction revealed a few nm thick disordered layer within the Nd2Fe14B phase at the Nd/Nd2Fe14B interface of a low coercivity sample, while a high coercivity sample showed a well-defined crystal structure of Nd2Fe14B near the NdOx/Nd2Fe14B interface.
影响因子：
3.2
作者：
SAGAWA, M;FUJIMURA, S;MATSUURA, Y
通讯作者：
MATSUURA, Y