【摘要】 本文在1.5—300K温度范围内测量了R₂Fe₁₄B（R=Ce,Pr,Gd）各向异性常数K₁,K₂和各向异性场H_A随温度的变化。同时用单离子模型计算了Pr³⁺离子对Pr₂Fe₁₄B磁晶各向异性的贡献,得到与实验值半定量符合的结果。更多还原

【Abstract】 The temperature dependence of the anisotropy constants K₁, K₂ and the anisotropy field H_A. of R₂Fe₁₄B （R = Ce, Pr, Gd） have been measured in temperature range of 1.5 K to 300 K. And the contribution of Pr³⁺ ions to the magnetocrystalline anisotropy of Pr₂Fe₁₄B compound was calculated by the single ion theory. The result is semiquantitatively consistent with the experiment.更多还原