Heat Capacity Studies of NdNi_4Si Compound

机译：NdNi_4Si化合物的热容量研究

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The study of the heat capacity of the intermetallic compound NdNi_4Si including the effect of the magnetic field is reported. This compound crystallizes in the hexagonal CaCu_5-type structure, space group P6/mmm. NdNi_4Si is ferromagnetic with T_C = 8 K and the saturation magnetic moment of 1.5 μ_B/f.u. at 4.2 K (in H = 9 T). The heat capacity was analyzed considering the electronic contribution, the Schottky anomaly, and the lattice contributions in the frames of the Debye model. The scheme of the energy levels created by the crystal electric field split is determined from the Schottky contribution to the specific heat. NdNi_4Si was characterized by the electronic heat capacity coefficient γ = 85 mJ/(mol K~2) and the Debye temperature Θ_D = 325 K.

机译：报道了对金属间化合物NdNi_4Si的热容量的研究，包括磁场的影响。该化合物以六方CaCu-5型结构结晶，空间群为P6 / mmm。 NdNi_4Si是铁磁性的，T_C = 8 K，饱和磁矩为1.5μ_B/ f.u。在4.2 K（H = 9 T）下。考虑电子贡献，肖特基异常和Debye模型框架中的晶格贡献来分析热容。由肖特基对比热的贡献来确定由晶体电场分裂产生的能级的方案。 NdNi_4Si的特征在于电子热容系数γ= 85 mJ /（mol K〜2）和德拜温度Θ_D= 325 K.

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来源
《Acta physica polonica A》|2008年|126-128|共3页
会议地点 Poznan(PL);Poznan(PL)
作者
M. Falkowski; M. Reiffers; M. Zapotokova; A. Kowalczyk; T. Tolinski; E. Gazo;
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作者单位

Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznan, Poland;

Institute of Experimental Physics, Slovak Academy of Sciences Watsonova 47, 043 53 Kosice, Slovakia;

Institute of Experimental Physics, Slovak Academy of Sciences Watsonova 47, 043 53 Kosice, Slovakia;

Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznan, Poland;

Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznan, Poland;

Institute of Experimental Physics, Slovak Academy of Sciences Watsonova 47, 043 53 Kosice, Slovakia;

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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
thermal expansion; thermomechanical effects; rare earth metals and alloys; level splitting and interactions;

机译：热膨胀；热力学效应；稀土金属和合金；级别划分和互动;

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Heat Capacity Studies of NdNi_4Si Compound

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