退火(玻璃)
材料科学
矫顽力
无定形固体
纳米复合材料
磁性
激光器
红外线的
脉冲激光沉积
胶卷机
磁各向异性
磁化
薄膜
复合材料
光学
凝聚态物理
纳米技术
结晶学
磁场
化学
物理
量子力学
作者
K. Koike,Tokunosuke Uchida,Keiho Sakurai,Nobuyuki Inaba,Hiroaki Kato,Masaru Itakura,Shigeo Hara,Y. Saito,Susumu Okubo,Hitoshi Ohta
出处
期刊:AIP Advances
[American Institute of Physics]
日期:2022-03-01
卷期号:12 (3)
被引量:4
摘要
The formation of nanocomposite Nd-Fe-B/Mo/FeCo multilayered magnet films using the infrared laser annealing technique. The perpendicular magnetic anisotropy of the film with Mo interlayer was larger than that of the film without Mo interlayer before annealing. Magnetic properties of both films were drasticly changed from soft magnetism to hard magnetism with in-plane magnetic anisotropy after the infrared laser annealing process at 760°C. Coercivity of in-plane annealed film with Mo interlayer was about 10 kOe which was double that of the film without Mo interlayer. In second quadrant, squareness of demagnetization curve of infrared laser annealing processed film with Mo interlayer was better than that of film without Mo interlayer. The infrared laser annealing process crystallizes the amorphous phase of the Nd-Fe-B layer as well as the multi-step annealing, even though the infrared laser annealing process time is only 1/100 of the process time of the multi-step annealing using halogen lamps reported previously.
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