Thermoelectric Properties of Transition-Metal Oxide Thin Films and Superlattices

B. Keimer, R. Pentcheva

Publications

  • Manish Verma, Rossitza Pentcheva, Metal-insulator transition and robust thermoelectricity via strain-tuned interplay between structural and electronic properties in (SrVO3)1/(SrTiO3)1(001) superlattices, Phys. Rev. Research 4, 033013, (2022) [G3,G8]
  • B. Geisler, P. Yordanov, M. E. Gruner, B. Keimer, R. Pentcheva, Tuning the Thermoelectric Properties of Transition Metal Oxide Thin Films and Superlattices on the Quantum Scale, Phys. Stat. Solidi (b) 202100270, (2021) [G8]
  • O. Köksal, R. Pentcheva, Chern insulating phases and thermoelectric properties of EuO/MgO(001) superlattices, Phys. Rev. B 103, 045135, (2021) [G3,G8]
  • B. Geisler, R. Pentcheva, Competition of defect ordering and site disproportionation in strained LaCoO$_3$ on SrTiO$_3$(001), Phys. Rev. B 101, 165108 (2020) [G3,G8]
  • P. Yordanov, W. Sigle, P. Kaya, M. E. Gruner, R. Pentcheva, B. Keimer, H.-U. Habermeier, Large thermopower anisotropy in PdCoO$_2$ thin films, Phys. Rev. Materials 3, 085403 (2019) [G8]
  • M. Verma, B. Geisler, R. Pentcheva, Effect of confinement and octahedral rotations on the electronic, magnetic, and thermoelectric properties of correlated Sr$X$O$_3$/SrTiO$_3$(001) superlattices ($X$=V, Cr, or Mn), Phys. Rev. B 100, 165126 (2019) [G8]
  • F. Belviso, B. Geisler, R. Pentcheva, Viewpoint: Atomic-Scale Design Protocols toward Energy, Electronic, Catalysis, and Sensing Applications, Inorg. Chem. 58, 22, 14939 (2019) [G8]
  • B. Geisler, R. Pentcheva, Inducing n- and p-type thermoelectricity in oxide superlattices by strain tuning of orbital-selective transport resonances, Phys. Rev. Applied 11, 044047 (2019) [G8]
  • F. Wrobel, B. Geisler, Y. Wang, G. Christiani, G Logvenov, M. Bluschke, E. Schierle, P. A. van Aken, B. Keimer, R. Pentcheva, E. Benckiser, Digital modulation of the nickel valence state in a cuprate-nickelate heterostructure, Phys. Rev. Materials 2, 035001 (2018) [G8,G1,G3]
  • Benjamin Geisler, Rossitza Pentcheva, Confinement- and strain-induced enhancement of thermoelectric properties in LaNiO$_3$/LaAlO$_3$ (001) superlattices, Phys. Rev. Materials 2, 055403 (2018) [G3,G8]

Short Summary

Project project{G8} uses thin-film technology and characterization and theory-guided exploration based on density functional theory and Boltzmann transport calculations to understand and optimize the thermoelectric performance of selected transition metal oxide thin films and superlattices. In particular, we will explore the influence of epitaxial strain and oxygen incorporation on the thermopower of model compounds. Further research will focus on the effect electrostatic doping, confinement and the crystallographic orientation.