Influence of competing energy scales on the effective spin degeneracy in CeNi9−xFexGe4
Influence of competing energy scales on the effective spin degeneracy in CeNi9−xFexGe4
复制标题
竞争能量尺度对 CeNi9âxFexGe4 有效自旋简并性的影响
DOI:
10.1016/j.jallcom.2012.01.001
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发表时间:
2012
影响因子:
6.2
通讯作者:
E-W. Scheidt
中科院分区:
文献类型:
--
作者:
C. Gold;M. Uffinger;M. Herzinger;G. Eickerling;W. Scherer;H. Michor;E-W. Scheidt
The interplay between Kondo effect, RKKY interaction and crystal field (CF) splitting in the pseudo-ternary substitution series CeNi9−xFexGe4(0≤x≤1) is investigated by means of X-ray powder diffractometry and specific heat studies. Contrary to CeNi8CuGe4and CeNi8CoGe4no long range magnetic order occurs in CeNi8FeGe4since it basically retains a four-fold degenerate Kondo lattice ground state similar to its parent system CeNi9Ge4. Kondo screening as well as a modest CF splitting between the two lower energy states (Γ7(1)and Γ7(2)) increase simultaneously with increasing Fe concentration resulting in a Kondo dominated ground state for the whole substitution region. A new parameter α=TRln4/TRln2is introduced to analyze the interplay between the competing energy scales.
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DOI:
10.1088/0953-8984/21/23/235604
发表时间:
2008
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
L. Peyker;Christian Gold;Ernst;Wolfgang Scherer;J. Donath;P. Gegenwart;Franz Mayr;Tobias Unruh;Volker Eyert;Ernst Bauer;H. Michor
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H. Michor
DOI:
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发表时间:
2010
期刊:
Journal of Physics: Condensed Matter
影响因子:
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H. Michor
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发表时间:
2003
期刊:
影响因子:
--
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通讯作者:
G. Giester
DOI:
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发表时间:
1983
期刊:
影响因子:
--
作者:
P. Coleman
通讯作者:
P. Coleman
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
H. Michor;D. Adroja;Ernst Bauer;R. Bewley;D. Dobozanov;A. Hillier;G. Hilscher;U. Killer;M. Koza;S. Manalo;P. Manuel;M. Reißner;P. Rogl;M. Rotter;E. Scheidt
通讯作者:
E. Scheidt