Abstract

We measured the Seebeck coefficient and resistivity of the concentrated Kondo compound CePtSi 2 under hydrostatic pressure. At ambient pressure, S gradually increases with decreasing temperature and shows a maximum value S max = 28 µV/K around 86 K, followed by a minimum around 4.5 K, as is often observed in antiferromagnetic Ce-based heavy fermion compounds. With increasing pressure, S at high temperature increases, whereas S below 20 K does not show a significant change.

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