Heat conductivity and thermopower of Nd1−xSrxCoO3 ceramic

Improvement of thermoelectric properties of lanthanum cobaltate by Sr and Mn co-substitution

“…A large value of Seebeck coefficient (α) also occurs in La1−xSrxCoO3 up to room temperature [15,16] and the nature of temperature dependence of Seebeck coefficient in this system is very sensitive to Sr concentration as reported elsewhere [17,[23][24]. However, most of the research work is focused on single site substitution either at La/Nd site or Co site in rare earth cobaltates [31][32][33]. The effect of each of the substitution is different and aids in improving the physical parameter required for a good TE materials.…”

Synthesis and high-temperature thermoelectric properties of Ni and Ti substituted LaCoO3

“…Effects of cobalt site and lanthanum site substitution on the properties of perovskite-type cobaltates have been of great interest to the community (see [9,11,12,[15][16][17][18]). The different substitutions in the cobaltates may considerably improve its transport properties by changing the oxidation state of cobalt.…”

Effects of Na-Doping on Structure and Magnetic Properties of LaCoO₃

“…At T=0 K, the spin state is at a LS diamagnetic state with 6 paired t 2g electrons and no electrons in the nominally higher energy e g states. The increase of the temperature excites the spins either to a mixture of the LS state and the HS state, or to a mixture of the LS state and the IS state [8]. The spin state in the LaCoO 3 cobaltite sensitively depends on the doping elements.…”