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Synthesis of filled skutterudite compounds: BayFexCo4−xSb12

Published online by Cambridge University Press:  31 January 2011

L. Chen ,
X. Tang ,
T. Goto  and
T. Hirai
L. Chen
Affiliation:
Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
X. Tang
Affiliation:
Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
T. Goto
Affiliation:
Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
T. Hirai
Affiliation:
Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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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.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 11 , November 2000 , pp. 2276 - 2279
Copyright
Copyright © Materials Research Society 2000

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References

REFERENCES

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