磁泡材料的磁滞迴线和泡阵磁畴的剩磁

HYSTERESIS LOOPS OF MAGNETIC BUBBLE MATERIALS AND THE REMANENCE OF BUBBLE LATTICE DOMAIN

本文采用一种用光电倍增管作为检测装置的技术,可以自动绘出透明磁性介质的磁滞迴线,测得了不同磁泡外延膜样品,在不同磁畴形状等条件下的磁迴线;解释了曲线的特点,并从实验上证实,具有泡阵磁畴的磁泡膜是处于一种特殊的剩磁状态。

An apparatus is used in which the hysteresis loops of a transparent magnetic medium can be drawn. We measure the hysteresis loops of samples with various domain patterns, especially bubble lattice and strip domain patterns. The diffrences of these loops were noticed and interpreted qualitatively. From the results we comfirmed the conclusion given by Cape and Lehman that a magnetic film with the bubble lattice domain pattern is in a special "remanence" state.