Long-range magnetic order in intermediate-valence CeLu alloys

被引：0
|
作者：
P.P. Deen
J.P. Goff
A.M. Toader
F. Yakhou
J. Klenke
R.C.C. Ward
M.R. Wells
机构：
[1] Department of Physics,
[2] University of Liverpool,undefined
[3] Oliver Lodge Laboratory,undefined
[4] Oxford Street,undefined
[5] Liverpool. L69 7ZE,undefined
[6] UK,undefined
[7] European Synchrotron Radiation Facility,undefined
[8] BP 220,undefined
[9] 38043 Grenoble Cedex,undefined
[10] France,undefined
[11] Hahn Meitner Institut,undefined
[12] Glienicker Strasse 100,undefined
[13] 14109 Berlin,undefined
[14] Germany,undefined
[15] Oxford Physics,undefined
[16] Clarendon Laboratory,undefined
[17] Oxford OX1 3PU,undefined
[18] UK,undefined
来源：
Applied Physics A | 2002年 / 74卷
关键词：
PACS: 71.20.E; 78.70.C; 75.50;
D O I：
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学科分类号：
摘要：
The magnetic ordering in CeLu alloys has been studied using neutron diffraction, and the electronic state of the Ce has been determined using X-ray magnetic resonant scattering (XMRS). CeLu orders with the same magnetic structure as CeY, but the temperature dependence of the order parameter is different and the average saturated moment on the Ce sites is lower. The diffuse neutron magnetic scattering observed in other Ce alloys is not observed for CeLu, and this implies that this unusual scattering originates from the competition between exchange and dipolar interactions. The XMRS results show that the Ce in CeLu alloys has an intermediate valence, and the results suggest that this behaviour is due to chemical pressure.
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页码：s784 / s785
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