59Co NMR study of (U,Nd)Co2Ge2

被引：0
|
作者：
Caspi, EN
Melamud, M
Shaked, H
Shames, AI
Goren, SD
机构：
[1] Nucl Res Ctr Negev, IL-84190 Beer Sheva, Israel
[2] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[3] Israel Atom Energy Commiss, IL-61070 Tel Aviv, Israel
来源：
PHYSICA B-CONDENSED MATTER | 2002年 / 312卷
关键词：
NMR; RKKY interaction; exchange interactions; uranium compotuids;
D O I：
10.1016/S0921-4526(01)01522-8
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Co-50 NMR of (U1-xNdx)Co2Ge2(x=0, 0.25, 0.5, 0.75, 1) was studied in an external field of 8.0196T in the temperature range of 5-300 K. Three well distinguished regions, corresponding to the paramagnetic. intermediate, and antiferromagnetically ordered states of these compounds, were observed, in a good agreement with neutron diffraction. AC-susceptibility, and SQUID magnetization measurements. Using the results for paramagnetic region, the coefficients of indirect exchange interaction between conduction and f-electrons in these compounds were determined as -0.06(3) and -0.16(9)eV, for U and Nd, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：280 / 282
页数：3
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