一、引言 对于金属玻璃的磁感生各向异性常数K_u随温度的变化,已经发现有如下关系成立: K_u(T)=kM_s~α(T), (1)其中K_u(T)和M_s(T)为温度T下的磁感生各向异性常数和饱和磁化强度,k和α为常数。现有的工作曾得到不同的α值。对于FeNiPB的磁化感生各向异性,Egami等和Allia等得到α=2,Luborsky得到α=3.7。对于几种近零磁致伸缩Co基合金的磁化感生和应变感生各向异性,Flanders等和作者分别得到α=2.6和3。对于(Fe_(1-x)Co_x)_(78)Si_(10)B_(12)的指 I. INTRODUCTION For the magnetic anisotropy constant K_u of metallic glass, it has been found that the relationship K_u (T) and M_s (K) T) is the magnetic anisotropy constant and saturation magnetization at temperature T, k and α are constants. Existing work has received different alpha values. For the magnetization induced anisotropy of FeNiPB, Egami et al. And Allia et al. Obtained α = 2, and Luborsky obtained α = 3.7. For the magnetization induced and strain induced anisotropy of several near-zero magnetostrictive Co-based alloys, Flanders et al. And the authors obtained α = 2.6 and 3, respectively. For the (Fe_ (1-x) Co_x) _ (78) Si_ (10) B_ (12)