Journal article

Electronic structure and the ground-state properties of cobalt antimonide skutterudites: Revisited with different theoretical methods


Authors listHammerschmidt, Lukas; Schlecht, Sabine; Paulus, Beate

Publication year2013

Pages131-139

Journalphysica status solidi (a) – applications and materials science

Volume number210

Issue number1

ISSN1862-6300

DOI Linkhttps://doi.org/10.1002/pssa.201228453

PublisherWiley


Abstract
We have computed the lattice structure, bulk modulus, electronic structure, and cohesive energies for the CoSb3 skutterudite by performing plane wave and atomic basis set DFT, as well as HF atomic basis set calculations. We find that plane wave and atomic basis set DFT calculations compare almost perfectly well. Band gaps vary significantly, depending on the applied functional and subtle changes of the lattice structure of CoSb3. Where LDA strongly overestimates the binding, cohesive energies are reasonably well described by GGA and hybrid DFT functionals within 2?eV in comparison to experiment. HF results are unreasonably far off compared to DFT and experimental values for all calculated properties, which indicates that correlation effects play an important role in the characterization of skutterudites.



Citation Styles

Harvard Citation styleHammerschmidt, L., Schlecht, S. and Paulus, B. (2013) Electronic structure and the ground-state properties of cobalt antimonide skutterudites: Revisited with different theoretical methods, physica status solidi (a) – applications and materials science, 210(1), pp. 131-139. https://doi.org/10.1002/pssa.201228453

APA Citation styleHammerschmidt, L., Schlecht, S., & Paulus, B. (2013). Electronic structure and the ground-state properties of cobalt antimonide skutterudites: Revisited with different theoretical methods. physica status solidi (a) – applications and materials science. 210(1), 131-139. https://doi.org/10.1002/pssa.201228453



Keywords


COSB3electronic structureskutteruditesThermoelectric materialsTHERMOELECTRIC PROPERTIESWAVE BASIS-SET

Last updated on 2025-02-04 at 02:32