Kondo effect and thermoelectric transport in CePd3Bex

Gumeniuk, Roman; Schnelle, Walter; Kvashnina, Kristina O.; Leithe-Jasper, Andreas

doi:10.1088/0953-8984/28/16/165603

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Kondo effect and thermoelectric transport in CePd₃Be_x

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Gumeniuk, Roman
Roman Gumeniuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schnelle, Walter
Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Leithe-Jasper, Andreas
Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Gumeniuk, R., Schnelle, W., Kvashnina, K. O., & Leithe-Jasper, A. (2016). Kondo effect and thermoelectric transport in CePd₃Be_x. Journal of Physics: Condensed Matter, 28(16):, pp. 1-8. doi:10.1088/0953-8984/28/16/165603.

引用: https://hdl.handle.net/11858/00-001M-0000-002A-5152-3

要旨

The physical properties of the series CePd3Bex (0 <= x <= 0.47) have been studied. Introducing Be into CePd3 results in a drastic reduction of the Seebeck coefficient from 100 mu V K-1 at 300 K to -2 mu V K-1, respectively. Paramagnetism of Ce3+ free ions and metallic conduction dominate the physical properties. A structural transition at x = 0.25 is accompanied by a significant lowering of the Kondo temperature and leads to a successive suppression of the thermoelectric performance of CePd3Bex with increasing x.