Abstract
The specific heat of ErNi5 and LaNi5 has been measured on single-crystalline specimens in the temperature interval from 1.5 K to 250 K. By comparison, the contribution of the Er subsystem to the specific heat has been determined. This contribution is well accounted for within a single-ion Hamiltonian that includes the CEF and exchange interactions of the Er3+ ions. The CEF interactions of the Er3+ ion have been compared with those found in other RNi5 compounds and the remarkable constancy of CEF interactions through the 4f series is discussed.
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Schedule a callMore From: Journal of physics. Condensed matter : an Institute of Physics journal
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