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Kondo effect and thermoelectric transport in CePd3Be x
Roman Gumeniuk1,2, Walter Schnelle2, Kristina O Kvashnina3,4
1Institut für Experimentelle Physik, TU Bergakademie Freiberg, Leipziger Straße 23, 09596 Freiberg, Germany.
None:
The physical properties of the series CePd3Be(x) (0 ≤ x ≤ 0.47) have been studied. Introducing Be into CePd3 results in a drastic reduction of the Seebeck coefficient from 100 μV K(-1) at 300 K to -2 μV K(-1), respectively. Paramagnetism of Ce(3+) 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 CePd3Be(x) with increasing x.
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