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Strong depression of magnetism in heavy fermion U2Zn17
Abstract
We have investigated the effects of impurities on the heavy fermion system U2Zn17. The Neél temperature of 9.7 K in pure U2Zn17 is strongly depressed to below 1.5 K with 2% Cu (on the Zn site) or 20% Th (on the U site). The electronic specific heat coefficient is practically independent of impurity concentration above any magnetic ordering temperature. © 1986.
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