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Specific heat C and thermal conductivity measurements between 0. 1 and 10 K on the superconducting (T₂=2. 53 K) and structurally disordered metal Zr₀. ₇Pd₀. ₃ exhibit an approximately linear term in C and a T^1. 9 dependence of below T₂. The magnitudes of these terms are close to those found for insulating glasses, thereby suggesting that disorder-induced localized excitations exist at similar densities in very different classes of disordered solids.
Graebner et al. (Mon,) studied this question.