155Gd Mossbauer study of GdFe6Ge6

被引：2
|
作者：
Cadogan, J. M. [1 ]
Ryan, D. H.
Cashion, J. D.
机构：
[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
[2] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[3] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada
[4] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 21期
关键词：
D O I：
10.1088/0953-8984/19/21/216204
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have studied the magnetic order of the Gd sublattice in GdFe6Ge6 using the 86.5 keV Gd-155 Mossbauer resonance. The Gd sublattice orders ferromagnetically at 30.8 +/- 0.2 K, independently of the Fe sublattice which orders antiferromagnetically at 489 +/- 5 K. The Gd-155 hyperfine magnetic field at 5 K is -25.6 +/- 0.1 T and the principal component of the electric field gradient tensor (V-ZZ) is +(5.8 +/- 2.1) x 10(20) V m(-2), which corresponds to a second-order crystal-field lattice coefficient A(20) of -22 +/- 9 K a(0)(-2).
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页数：9
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