Thermodynamic properties of the ternary compounds CeM2Ge2

Thermodynamic properties of the ternary compounds CeM2Ge2
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三元化合物CeM2Ge2的热力学性质

DOI:
10.1016/0304-8853(88)90347-2
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发表时间:
1988
影响因子:
2.7
通讯作者:
A. Loidl
A. Loidl
中科院分区:
材料科学3区
文献类型:
--
作者:
A. Böhm;R. Caspary;U. Habel;L. Pawlak;A. Zuber;F. Steglich;A. Loidl

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本文报道了CeM_2Ge_2(M:Ag,Au,Ru)化合物的磁化率、比热和热膨胀的测量结果,它们的反铁磁性在TN = 5 K(Ag)和15 K(Au)以下,铁磁性在Tc = 7.5 K(Ru)以下。Ag基和Au基化合物的电子比热系数γ(T)在0.3 K时出现明显的最大值,这暗示了具有磁序的“中”重质量相干电子准粒子的共存。
Results of the susceptibility, specific heat and thermal expansion are reported for the compounds CeM2Ge2(M: Ag, Au, Ru), which order antiferromagnetically belowTN= 5 K (Ag) and 15 K (Au) and ferromagnetically belowTc= 7.5 K (Ru). Distinct maxima in the electronic specific heat coefficient γ(T) at 0.3 K for the Ag- and Au-based compounds hint at a coexistence of coherent electronic quasiparticles of “medium”-heavy mass with magnetic order.