Abstract
The filling fraction limit (FFL) for potassium in skutterudite CoSb3 has been investigated by first-principles methods. The FFL is derived by minimizing the formation energy of a reaction that includes the formation of both the filled skutterudite KyCo4Sb12 and the potential secondary phases KSb and CoSb2 when doping K into CoSb3. Our calculations show that K has an ultrahigh filling fraction up to more than 60% in CoSb3, as compared with those of previously reported fillers such as Sr, Ba, Ca, La, Ce, Eu, and Yb [X. Shi et al., Phys. Rev. Lett. 95, 185503 (2005)]. The extent to which this affects the thermoelectric properties of K-filled skutterudites is discussed.
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Dates
Type | When |
---|---|
Created | 18 years, 11 months ago (Sept. 11, 2006, 6:18 p.m.) |
Deposited | 2 years, 1 month ago (June 25, 2023, 12:45 a.m.) |
Indexed | 3 weeks, 4 days ago (July 30, 2025, 6:47 a.m.) |
Issued | 18 years, 11 months ago (Sept. 11, 2006) |
Published | 18 years, 11 months ago (Sept. 11, 2006) |
Published Online | 18 years, 11 months ago (Sept. 11, 2006) |
Published Print | 18 years, 11 months ago (Sept. 11, 2006) |
@article{Zhang_2006, title={Predication of an ultrahigh filling fraction for K in CoSb3}, volume={89}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2348760}, DOI={10.1063/1.2348760}, number={11}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Zhang, W. and Shi, X. and Mei, Z. G. and Xu, Y. and Chen, L. D. and Yang, J. and Meisner, G. P.}, year={2006}, month=sep }