DocumentCode :
2830558
Title :
Physical properties of the skutterudites (Ce,La)Fe4-xNixSb12
Author :
Viennois, R. ; Girard, L. ; Ravot, D. ; Terki, F. ; Charar, S. ; Tedenac, J.C. ; Paschen, S. ; Bentien, A. ; Steglich, F.
Author_Institution :
Groupe d´´Etudes des Semiconducteurs, Univ. Montpellier II, France
fYear :
2003
fDate :
17-21 Aug. 2003
Firstpage :
60
Lastpage :
63
Abstract :
We have explained the electrical transport experiments of the solid solution Cel-zLazFe4Sb12 with crystal electric field and Kondo effect. We also have shown that the transport and magnetic properties of the solid solutions RyFe4-xNixSb12 (R = and La) are strongly depending to the charge carrier concentration. At room temperature, the thermopower is essentially due to the transition metal density of states in both the Cc and the La containing compounds. Finally, we have investigated the thermoelectric properties of the solid solution CeyFe4-xNixSb12 with y = 4/3-2×/3 for which the best thermoelectric properties were found for y ≥ 0.6 and also for CeFe4Sb12, at room temperature.
Keywords :
Kondo effect; carrier density; cerium compounds; electric field gradient; electronic density of states; iron compounds; lanthanum compounds; nickel compounds; thermal conductivity; thermoelectric power; (Ce,La)Fe4-xNixSb12; (CeLa)Fe4-xNixSb12; Cel-zLazFe4Sb12; Kondo effect; charge carrier concentration; crystal electric field; electrical transport experiments; magnetic properties; skutterudites; thermoelectric properties; transition metal density of states; Iron; Magnetic field measurement; Magnetic materials; Magnetic properties; Performance evaluation; Relaxation methods; Solids; Temperature; Thermal conductivity; Thermoelectricity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Thermoelectrics, 2003 Twenty-Second International Conference on - ICT
Print_ISBN :
0-7803-8301-X
Type :
conf
DOI :
10.1109/ICT.2003.1287449
Filename :
1287449
Link To Document :
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