MAGNETIC VISCOSITY AND DEMAGNETIZATION BEHAVIOUR IN ISOTROPIC NANOCRYSTALLINE Pr12Fe82B6 RIBBONS

• 来源期刊: 中国物理（英文版）
• 关键词: magnetic viscosity nanocrystalline permanent magnet
• 年，卷（期）: 2001,（12）
• 页码范围: 1169-1171
• 页数: 3页
• 语种: 英文

摘要

We present the experimental results of the magnetic viscosity, demagnetization curve and recoil loop for isotropic nanocrystalline Pr12Fes2B6 ribbons prepared by melt-spinning. The thermal fluctuation field, activation volume and irreversible demagnetization are discussed. The coercivity mechanism is mainly determined by the inhomogeneous nucleation rather than a simple nucleation of reverse domain.