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Dislocations in a Partially-Filled Skutterudite

  • Jennifer S. Harper (a1) and Ronald Gronsky (a1)


The partially filled skutterudite structure is a candidate thermoelectric material with the capacity for phonon scattering by the decoupled rattling of filling ions. In this transmission electron microscopy investigation of a 1.6%Ce, 1.6%Ni, 4.9%Ge, 22.8%Co, and 69.1%Sb alloy, the structure is confirmed to be of a partially-filled skutterudite, but with a number of defects. Isolated dislocation dipoles, arrays of dislocation dipoles, and a subgrain boundary are observed and characterized. An atomic structure of a dislocation dipole is also proposed, and the effect of such dislocations on thermoelectric properties is discussed.



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1 Slack, G. A., in CRC Handbook of Thermoelectrics, Rowe, D. M., ed., Chemical Rubber, Boca Raton, Fl. (1995), Chap 34.
2 Hicks, L. D., Harmon, T. C., and Dresselhaus, M. S., Applied Physics Letters 63, 3230 (1993).
3 Hicks, L. D., and Dresselhaus, M. S., Physical Review B 47, 16631 (1993).
4 Cronin, S. B., Lin, Y. M., Koga, T., Sun, X., Ying, J. Y., 18th International Conference on Thermoelectrics, 554 (1999).
5 Venkatasubramanian, R., Colpitts, T., Watko, E., and Hutchby, J., 15th International Conference on Thermoelectrics, 454 (1996).
6 Mahan, G., Sales, B., and Sharp, J., Physics Today 50,42 (1997).
7 Mahan, G. D. and Sofo, J.O., Proceedings of the National Academy of Sciences, USA, 93, 7436 (1996).
8 Caillat, T., Borshchevsky, A., and Fleurial, J. P., 13th International Conference on Thermowlectrics, 58 (1995).
9 Slack, G. A. and Tsoukala, V. G., Journal of Applied Physics 76, 1665 (1994).
10 Meisner, G. P., Torikachvili, M. S., Yang, K. N., Maple, M. B., and Guertin, R. P., Journal of Applied Physics 57, 3073 (1985).
11 Braun, D. J. and Jeitschko, W., Journal of the Less-Common Metals 76, 33 (1980)
12 Jeitschko, W. and Braun, D., Acta Crystallographica B33, 3401 (1977)
13 Nolas, G. S., Slack, G. A., Morelli, D. T., Tritt, T. M., and Ehrlich, A. C., Journal of Applied Physics 79. 4002 (1996).
14 Kaiser, J. W. and Jeitschko, W., Journal Of Alloys and Compounds 291, 66 (1999).
15 Takizawa, H., Miura, K., Ito, M., Suzuki, T., and Endo, T., Journal of Alloys and Compounds 282, 79 (1999).
16 Sales, B. C., Chakoumakos, B. C., and Mandrus, D., Physical Review B 61, 2475 (2000).
17 Fleurial, J. P., Borshchevsky, A., Caillat, T., Morelli, D. T., and Meisner, G. P., 15th International Conference on Thermoelectrics, 91 (1996).
18 Morelli, D. T., Meisner, G. P., Chen, B., Hu, S., and Uher, C., Physical Review B 56, 7376 (1997).
19 Meisner, G. P., Morelli, D. T., Hu, S., Yang, J., and Uher, C., Physical Review Letters 80, 3551 (1998).
20 Nolas, G. S., Cohn, J. L., and Slack, G. A., Physical Review B 58, 164 (1998).


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