Abstract
Measurements of the low-temperature specific heat are presented for the metallic glasses Zr 70Be 30 and Zr 67Cu 33 in the as-quenched (cooling rate ∼ 10 6 K/s) and relaxed (annealing at T = 450 K for 2 h) states. Structure relaxation increases both electron density of states at the Fermi level and the Debye temperature, and at the same time the temperature of the superconducting transition decreases. The main parameters of the attractive interelectron interaction spectrum: coupling parameter, λ, and the effective frequency, ω ph, have been determined.
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