Skip to main content Accessibility help
×
Home

Synthesis of filled skutterudite compounds: BayFexCo4−xSb12

  • L. Chen (a1), X. Tang (a1), T. Goto (a1) and T. Hirai (a1)

Abstract

Ba-filled skutterudite compounds, BayFexCo4−xSb12, were synthesized by a two-step solid reaction method. A binary compound of Sb3Ba and a ternary compound of FexCo1−xSb2 were first synthesized at 900 and 973 K, respectively. The presynthesized Sb3Ba and FexCo1−xSb2 were then mixed with Sb and heated at 973 K in an Ar atmosphere. The resulting powder was of single phase with a composition of BayFexCo4−xSb12, having skutterudite structure with the Sb–dodecahedron voids fractionally filled by Ba. The lattice constant of BayFexCo4−xSb12 increased with Ba and Fe content. The maximum filling fraction of Ba (ymax) in BayFexCo4−xSb12 was found to be greater than that of Ce or La in LnyFexCo4−xSb12, especially in the lower Fe content region. The ymax varied from 0.35 to near 1.0 when Fe content (x) changed from 0 to 4.

Copyright

References

Hide All
1.Sales, B.C., Mandrus, D., and Willams, R.K., Science 272, 1325 (1996).
2.Sales, B.C., Mandrus, D., Chakoumakos, B.C., Keppens, V., and Thompson, J.R., Phys. Rev. B 56, 15081 (1997).
3.Tang, X., Chen, L., Goto, T., and Hirai, T., J. Jpn. Inst. Met. 63, 1412 (1999).
4.Chen, B.X., Xu, J.H., Uher, C., Morelli, D.T., Meisner, G.P., Fleurial, J-P., Caillat, T., and Borshchevsky, A., Phys. Rev. B 55, 1476 (1997).
5.Schmidt, T., Kliche, G., and Lutz, H.D., Acta Cryst. C 43, 1678 (1987).
6.Jung, D., Whangbo, M-H., and Alvarez, S., Inorg. Chem. 29, 2252 (1990).
7.Stetson, N.T., Kauzlarich, S.M., and Hope, H., J. Solid State Chem. 91, 140 (1991).
8.Chakoumakos, B.C., Sales, B.C., Mandrus, D., and Keppens, V., Acta Cryst. B 55, 341 (1999).
9.Nolas, G.S., Cohn, J.L., and Slack, G.A., Phys. Rev. B 58, 164 (1998).
10.Meisner, G.P., Morelli, D.T., Hu, S., Yang, J., and Uher, C., Phys. Rev. Lett. 80, 3551 (1998).
11.Nolas, G.S., Slack, G.A., Morelli, D.T., Tritt, T.M., and Enrlich, A.C., J. Appl. Phys. 79, 4002 (1996).
12.Singh, D.J. and Mazin, I.I., Phys. Rev. B 56, R1650 (1997).
13.Morelli, D.T., Meisner, G.P., Chen, B.X., Hu, S.Q., and Uher, C., Phys. Rev. B 56, 7376 (1997).
14.Braum, D.J. and Jeitschko, W., J. Less-Common Met. 72, 147 (1980).
15.Sales, B.C., Chakoumakos, B.C., and Mandrus, D., J. Solid State Chem. 146, 528 (1999).

Synthesis of filled skutterudite compounds: BayFexCo4−xSb12

  • L. Chen (a1), X. Tang (a1), T. Goto (a1) and T. Hirai (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed