We consider the Seebeck coefficient in LaCrO3 and related transition-metal-oxide perovskites using a model for electronic conduction based on the electronic structure of the 3d orbitals of the B-site transition-metal cations. Relations for the Seebeck coefficient are presented for those perovskite systems in which electronic conduction is through the t2g states of the B-site transition-metal cations. High- and low-temperature limits for the Seebeck coefficient are identified for the cases of both strong and weak magnetic coupling between electron spins. In these high- and low-temperature limits, the Seebeck coefficient is determined as a function of carrier concentration. Results are applied to an analysis of experimental data for the (La,Sr)CrO3
D. B. Marsh and P. E. Parris, "Theory of the Seebeck Coefficient in LaCrO₃ and Related Perovskite Systems," Physical Review B (Condensed Matter), vol. 54, no. 11, pp. 7720-7728, American Physical Society (APS), Sep 1996.
The definitive version is available at https://doi.org/10.1103/PhysRevB.54.7720
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© 1996 American Physical Society (APS), All rights reserved.
01 Sep 1996