軟磁性薄膜の磁査測定の―方法

抄録

  A measurement method of the saturation magnetostriction constant is introduced. The magnetostriction was determined without using the thickness and Young's modulus of the films. The annealed film deposited on a substrate which has the uniaxial anisotropy of thermal expansion has the magnetic anisotropy induced by thermal stress. The stress anisotropy was determined by interpolation or extrapolation. And the magnetic anisotropy induced by magnetostriction was measured from B-H loops. The saturation magnetostriction constant was derived from the relation between these two types of anisotropy.