Evidence for a charge Kondo effect in Pb(1-x)Tl(x)Te from measurements of thermoelectric power

Abstract

We report measurements of the thermoelectric power (TEP) for a series of Pb(1-x)Tl(x)Te crystals with x = 0.0 to 1.3%. Although the TEP is very large for x = 0.0, using a single band analysis based on older work for dilute magnetic alloys we do find evidence for a Kondo contribution of 11 - 18 uV/K. This analysis suggests that Tk is ~ 50 - 70 K, a factor 10 higher than previously thought.

4 pages, 3 figures

References in corpus (2)

• Evidence for charge Kondo effect in superconducting Tl-doped PbTe
• Superconductivity in charge Kondo systems

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