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琪a哥

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[求助] La-Fe-Si样品M-T曲线测试后的一些问题

我有个问题想向您请教一下大家:我用MPMS测试La-Fe-Si样品的M-T曲线趋势很好,但是曲线随着温度趋于平缓时,磁矩值依然很大,按其他文献报道材料从铁磁转到顺磁后磁矩应该接近于0;还有,我们测的这组材料是一级磁相变材料,磁矩的变化量应该很大,而M-T曲线显示,磁矩变化量很小,不明白这是为什么。

La-Fe-Si样品M-T曲线测试后的一些问题
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