焼結Srフェライト磁石の困難軸方向保磁力H_cJと微分保磁力H_cJDの考察

抄録

Magnetic measurement of sintered Sr ferrite magnet in the hard-axis direction was executed, and it was found that the value of coercive force H_cJ in hard-axis direction is much smaller than H_cJD, which value is the deviation of dJ/dH on the hysteresis curve. The difference of H_cJ and H_cJD is compared and discussed in the demagnetization process phenomenon. The angular dependence of coercive force in all directions between θ=0 and 90 degree was also measured and observed.