Thermal Conductivity, Thermopower, and Figure of Merit of La1-xSrxCoO3
K. Berggold, M. Kriener, C. Zobel, A. Reichl, A. Freimuth, T. Lorenz
Abstract
We present a study of the thermal conductivity k and the thermopower S of single crystals of La1-xSrxCoO3 with 0<= x <= 0.3. For all Sr concentrations La1-xSrxCoO3 has rather low k values, whereas S strongly changes as a function of x. We discuss the influence of the temperature- and the doping-induced spin-state transitions of the Co ions on both, S and k. From S, k, and the electrical resistivity rho we derive the thermoelectric figure of merit Z=S2/(k*rho). For intermediate Sr concentrations we find notably large values of Z indicating that Co-based materials could be promising candidates for thermoelectric cooling.
Create a lesson
Related papers
SrMn2Ge2: A metallic system with anomalous magnetotransport properties
A. van der Spuy, R. Warmbier, A. M. Strydom et al.
Hidden Triakontadipole Order in the Triangular-Lattice Magnet CeMgAl11O19
Yu-Bo Liu, Yuan Gao, Zhen Ma et al.
Closed- and open-system characterization of the Yukawa-SYK model in real time
Alex Windey, Christian H. Johansen, Philipp Hauke et al.
Small-data physics-informed ML model for magnetic exchange based on chemical composition and structure
Brice Kengni Zanguim, Thibaut Véry, Marie-Bernadette Lepetit
Thermodynamic Evidence for Multiple Field-Induced Phases in an Anisotropic Kagome Antiferromagnet
M. Schuchard, Q. Barthélemy, C. Marcenat et al.
Spin-orbit-locked symmetry and the stability of the triangular Dirac spin liquid in the ytterbium delafossites
Yasir Iqbal