RNi8Si3 (R=Gd,Tb): Novel ternary ordered derivatives of the BaCd11 type
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- 作者：M. Pania ; b ; marcella@chimica.unige.it" class="auth_mail" title="E-mail the corresponding author ; A.V. Morozkinc ; V.O. Yapaskurtd ; A. Provinoa ; b ; P. Manfrinettia ; b ; R. Nirmalae ; S.K. Malikf
- 关键词：Rare earth nickel silicides ; Crystal structure ; Magnetic properties
- 刊名：Journal of Solid State Chemistry
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：233
- 期：Complete
- 页码：397-406
- 全文大小：3200 K
文摘
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Novel RNi8Si3 (R=Gd, Tb) compounds have been synthesized and characterized.
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GdNi8Si3 and TbNi8Si3 are isostructural compounds, belonging to a new monoclinic structure type.
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The monoclinic GdNi8Si3 type is an ordered derivative of the tetragonal BaCd11 type.
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The large R–R interatomic distances mediated via Ni–Si network lead to a weak magnetism.
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Both compounds GdNi8Si3 and TbNi8Si3 show antiferromagnetic-like order around 3 K.