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Volumn 80, Issue 22, 2009, Pages

Evidence for a charge Kondo effect in Pb1-x Tlx Te from measurements of thermoelectric power

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EID: 77954709488     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.220403     Document Type: Article
Times cited : (28)

References (19)
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    • We also analyzed the TEP data for x≥0.3% using the original NG method, plotting S vs 1/ρ at fixed T. These NG plots deviated from linearity below 140 K. We believe this is mainly caused by small-angle scattering processes having a larger effect on thermal transport than on the electrical conductivity. Using two different extrapolation procedures to take this into account, we again found a positive peak in SK (T) near 50 K.
    • We also analyzed the TEP data for x ≥ 0.3 % using the original NG method, plotting S vs 1 / ρ at fixed T. These NG plots deviated from linearity below 140 K. We believe this is mainly caused by small-angle scattering processes having a larger effect on thermal transport than on the electrical conductivity. Using two different extrapolation procedures to take this into account, we again found a positive peak in S K (T) near 50 K.


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