中国物理B ›› 2014, Vol. 23 ›› Issue (2): 27501-027501.doi: 10.1088/1674-1056/23/2/027501
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
贾立颖, 阴津华, 马星桥
Jia Li-Ying (贾立颖), Yin Jin-Hua (阴津华), Ma Xing-Qiao (马星桥)
摘要: Research on exchange-spring magnets has focused on the microstructures of the materials. However, research has seldom been concerned with the effect of magnetic properties of soft magnetic phase on the energy product of an exchange-spring magnet. In this paper, a simple one-dimensional numerical simulation is used to investigate this effect in a Nd2Fe14B-based exchange-spring magnet. The results reveal that the larger the anisotropy constant, the stronger the exchange coupling, and the higher the magnetization of the soft magnetic phase, the larger the energy product of an exchange-spring magnet. This provides evidence for choosing a soft magnetic phase in an exchange-spring magnet.
中图分类号: (Saturation moments and magnetic susceptibilities)