2009 年 34 巻 2 号 p. 245-248
Tetragonal layered perovskite-type oxide systems Ca2.73-mNdmMn2O7-δ (0 ≦ m ≦ 0.18) and orthorhombic perovskite-type oxide systems having A-site vacancy, Ca1-n□nMnO3 and Ca0.9-nNd0.1□nMnO3, were synthesized by a standard ceramic technique. The thermoelectric properties such as Seebeck coefficient (S), thermal conductivity (κ) and electrical conductivity (σ) were investigated as functions of temperature and composition. The effect of insertion of rock salt layer or A-site vacancy to the perovskite-type structure on the thermoelectric properties, were clarified.
