Work

Evidence for a charge Kondo effect in Pb1−xTlxTe from measurements of thermoelectric power

Year: 2009

Type: article

Abstract: We report measurements of the thermoelectric power (TEP) for a series of ${\text{Pb}}_{1\ensuremath{-}x}{\text{Tl}}_{x}\text{Te}$ 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 $11--18\text{ }\ensuremath{\mu}\text{V}/\text{K}$. This analysis suggests that ${T}_{K}$ is $\ensuremath{\simeq}50--70\text{ }\text{K}$, a factor 10 higher than previously thought.

Source: Physical Review B

DOI: 10.1103/physrevb.80.220403

Authors: M. Matusiak, E. M. Tunnicliffe, J. R. Cooper, Y. Matsushita, I. R. Fisher

Institutions: University of Cambridge, Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Stanford University, SLAC National Accelerator Laboratory

Language: English

Topic: Rare-earth and actinide compounds

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, Engineering and Physical Sciences Research Council, Basic Energy Sciences