High-field magnetization study of (Nd,Dy)(2)Fe14B: Intrinsic properties and promising compositions

Abstract

The crystal-electric field and exchange parameters are determined for the (Nd0.5Dy0.5)(2)Fe14B compound by analyzing experimental magnetization curves obtained in high magnetic fields up to 58 T. The series (NdxDy1-x)(2)Fe14B compounds were analyzed theoretically to achieve a temperature stability while maintaining a large maximum energy product (BH)(max).

We demonstrate that computational simulations is an important tool in the materials design.

Keywords

• Hard magnetic materials
• High magnetic field
• Crystal-field parameters
• Exchange parameters
• Coercivity
• Maximum energy product