Abstract
We report thermopower and resistivity measurements of an YbAl 3 single crystal obtained by the “self-flux” method. Our data reveal Fermi liquid behavior up to T FL = 35 K. The Kondo temperature, T K ≈ 450 K, was determined from the high temperature thermopower data. The characteristic temperature, T 0, extracted from the temperature slope of the thermopower in the Fermi liquid regime is higher than the T K. We discuss a possible explanation of the obtained energy scales of YbAl 3.
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