As the temperature increases, the lattice thermal conductivity of all samples shows a decreasing trend, which is consistent with the typical characteristics of lattice thermal conductivity dominated by Umklapp scattering.
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Unveiling Brass-Doped CoSb<sub>3</sub>-Based Thermoelectric Materials Using Solid-State Reaction.
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The sentences
The resistivity of all samples shows an increasing trend with temperature, followed by gradual flattening, exhibiting characteristics of a heavily doped semiconductor.