Title :
Mg substitution effects of new thermoelectric Rh oxides
Author :
Shibasaki, S. ; Kobayashi, W. ; Terasaki, I.
Author_Institution :
Dept. of Appl. Phys., Waseda Univ., Tokyo
Abstract :
Recently, Rh-Mg substitution to the delafossite oxide, CuRhO2 was found to show metallic behavior without lowering mobility. Motivated by this discovery, we study the Mg substitution effects of another oxide. Unfortunately, Rh-Mg substitution in spinel oxide ZnRh2O4 was not so successful good as that in CuRhO2. The room-temperature resistivity and thermopower of ZnRh1.4Mg0.6O4 are 55 mOmegacm and 75 muV/K, respectively. This difference may be due to the dimensionality of crystal structure.
Keywords :
copper compounds; crystal structure; electrical resistivity; magnesium; thermoelectric power; zinc compounds; CuRhO2:Mg; Mg substitution effects; ZnRh2O4:Mg; crystal structure; delafossite oxide; dimensionality; resistivity; temperature 293 K to 298 K; thermoelectricity; thermopower; Conductivity; Crystalline materials; Doping; Lattices; Physics; Stability; Temperature; Thermoelectricity; Waste materials; X-ray diffraction;
Conference_Titel :
Thermoelectrics, 2007. ICT 2007. 26th International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4244-2262-3
Electronic_ISBN :
1094-2734
DOI :
10.1109/ICT.2007.4569441