The magnetic structures of RMgSn compounds (R = Ce, Pr, Nd, Tb)

C. Ritter; A. Provino; P. Manfrinetti

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The magnetic structures of RMgSn compounds (R = Ce, Pr, Nd, Tb)

机译：RMgSn化合物的磁性结构（R = Ce，Pr，Nd，Tb）

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The synthesis of the new compounds RMgSn (R = La-Nd, Sm, Gd-Tm, Lu and Y) has been recently reported. The compounds formed by La and Ce crystallise in the TiNiSi structure type (oP12, Prima), while from Nd they adopt the CeScSi-type (tI12, I4/mmm); PrMgSn is dimorphic: its high-temperature form (HT) is TiNiSi-type while the low-temperature one (LT) is CeScSi-type. In this paper we now report the results of a neutron diffraction investigation which has been performed in order to refine the crystal as well as the magnetic structures for the RMgSn compounds with R = Ce, Pr, Nd and Tb. All these compounds see at low temperature the establishment of long range magnetic ordering with a predominantly antiferromagnetic interaction; only PrMgSn-HT orders ferromagnetically. These results agree with those from magnetic measurements recently reported.

机译：最近已经报道了新化合物RMgSn（R ＝ La-Nd，Sm，Gd-Tm，Lu和Y）的合成。 La和Ce形成的化合物以TiNiSi结构类型（oP12，Prima）结晶，而Nd则采用CeScSi类型（tI12，I4 / mmm）。 PrMgSn是双晶的：其高温形式（HT）为TiNiSi型，而低温形式（LT）为CeScSi型。在本文中，我们现在报告中子衍射研究的结果，该研究已经进行了以精炼具有R = Ce，Pr，Nd和Tb的RMgSn化合物的晶体以及磁性结构。所有这些化合物在低温下均能建立具有主要反铁磁相互作用的长程磁有序。仅PrMgSn-HT具有铁磁性订购。这些结果与最近报道的磁测量结果一致。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第41期|共9页
作者
C. Ritter; A. Provino; P. Manfrinetti;
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正文语种 eng
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Rare-earth magnesium stannides; Crystal structure; Neutron diffraction; Magnetic ordering; Magnetic structure;

机译：稀土锡化镁;晶体结构;中子衍射;磁有序;磁结构;

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1. The magnetic structures of RMgSn compounds (R = Ce, Pr, Nd, Tb) [J] . C. Ritter, A. Provino, P. Manfrinetti Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2011,第41期

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The magnetic structures of RMgSn compounds (R = Ce, Pr, Nd, Tb)

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