Abstract

The changes of the electronic structure of Cu-Pt undergoing an order-disorder transition have been investigated by measuring the linear coefficient of the low-temperature specific heat \ensuremath{\gamma} and the nuclear spin-lattice relaxation time ${\mathit{T}}_{1}$ of $^{195}\mathrm{Pt}$. The observed changes of the values of \ensuremath{\gamma} and ${\mathit{T}}_{1}$ can be interpreted by comparing them with theoretical values based on relativistic Korringa-Kohn-Rostoker coherent-potential-approximation and embedded-cluster-method calculations. The influence of short-range order on the electronic structure has also been investigated.

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