Journal
PHYSICAL REVIEW B
Volume 76, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.76.085203
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We report the electrical transport properties of Yb14MnSb11, resistivity and thermoelectric power under pressures up to 2.3 GPa. In both transport coefficients we can follow the ferromagnetic transition, which shows a shift from the ambient pressure value of 52 K to lower temperatures and eventually saturation at 49 K for p>2.0 GPa. The high values of thermopower and its linear temperature dependence down to 100 K demonstrate that the system is a bad metal. Anomalies in the thermopower below the ferromagnetic transition are rather sensitive to pressure. Our experimental observations are consistent with the model of an underscreened Kondo lattice.
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