engleski

On the energy scales of YbAl₃ from the thermopower data: the role of coherence on thermopower

We report on thermopower and resistivity data measured on an YbAl₃ single crystal from 2 K up to 320 K. The thermopower clearly reveals signatures of coherence in YbAl₃ up to T<i>_coh</i>=35 K. We extracted the characteristic temperatures from our thermopower data, discuss and compare them with the ones extracted from the other experiments. To explain some unusual features of the temperature dependence of the thermopower, we relate the thermopower data with other physical quantities measured on the same single crystals of YbAl₃. In addition, we compare our thermopower measurements to the thermopower data found in literature.

YbAl₃; coherence; Kondo temperature

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