Neutron diffraction studies of Pr ordering in PrBa2Cu4O8

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题名:	Neutron diffraction studies of Pr ordering in PrBa2Cu4O8
作者:	Lin,YC;Wu,SY;Li,WH;Lee,KC;Lynn,JW;Lin,CW;Lin,JY;Yang,HD
贡献者:	物理研究所
关键词:	MAGNETIC ORDER
日期:	1997
上传时间:	2010-07-08 14:06:07 (UTC+8)
出版者:	中央大學
摘要:	Neutron diffraction and AC susceptibility measurements have been performed to study the magnetic ordering of the Pr spins in PrBa2Cu4O8. An anomaly at 15 K, which we believe is associated with the ordering of the Pr spins, is clearly seen in the temperature dependence of the AC susceptibility, chi'(T) The coupling between the Pr spins, as revealed by neutrons, is antiferromagnetic in nature, with a spin structure may be characterized by the {1/2 1/2 1} wave vector. Three-dimensional coupling between the Pr spins is observed, despite the appearance of exact cancellations of the coupling between the adjacent layers along the c-axis due to geometric symmetry. (C) 1998 Elsevier Science B.V. All rights reserved.
關聯:	PHYSICA B
显示于类别:	[物理研究所] 期刊論文

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