کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1620069 1516389 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermoelectric power in CeT4M (T=Cu, Ni; M=In, Ga) compounds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Thermoelectric power in CeT4M (T=Cu, Ni; M=In, Ga) compounds
چکیده انگلیسی
CeCu4In and CeCu4Ga compounds belong to heavy fermion (HF) systems. CeNi4In and CeNi4Ga seems to be on the border between HF and mixed-valence (MV) states. It has been observed that thermoelectric power (TEP) shows a significant difference between these Cu and Ni-based compounds, whereas thermal conductivity does not reveal such dramatic changes in the temperature dependencies. These results are analyzed assuming the Kondo effect at presence of the crystal electric field for the HF compounds and two density of states peaks in the region of the Fermi level for the remaining compounds. The details of the electronic structure are supposed to be responsible for the negative TEP of CeNi4M.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 490, Issues 1–2, 4 February 2010, Pages 15-18
نویسندگان
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