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Magnetic properties of the RCo_3Sn (R=Gd to Tm) compounds

机译:RCo_3Sn(R = Gd to Tm)化合物的磁性

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摘要

The RCo_3Sn compounds where R=Gd to Tm, as well as the new SmCo_3Sn, have been synthesised and their magnetic properties investigated from 4 to 300 K and under 7-9 T. These alloys order ferromagnetically, the Curie temperatures ranging from 10 K for R=Tm to 130 K for R=Gd. Their magnitude together with their linear variation versus the 'de Gennes' factor tend to show that Co is not magnetic in this series. Besides, a smooth superimposed metamagnetic type behaviour occurs in GdCo_3Sn below 22 K around 1.2 T.
机译:已经合成了RCo_3Sn化合物,其中R = Gd至Tm,以及新的SmCo_3Sn,并在4至300 K和7-9 T下研究了它们的磁性能。这些合金具有铁磁有序性,居里温度为10K。对于R = Gd,R = Tm至130K。它们的大小以及线性变化与“ de Gennes”因数的关系倾向于表明,Co在该系列中不是磁性的。此外,在22 K以下1.2 T附近的GdCo_3Sn中发生了平滑的叠加超磁类型行为。

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