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It is found that there is an empirical correlation between phonon spectrum parameters λ, 〈ω〉,〈ω2〉 and the Hall coefficients RH in a variety of nontransition metals and alloys; there is a maximum of λ,〈ω〉 and 〈ω2〉 as RH =-3.5--4.0×10-11m3/As. There is also a similar empirical correlation between λ, 〈ω〉, 〈ω2〉 and Hall coefficients RHL of responding liquid metals. Finally, the question of raising Tc of amorphous superconductors is discussed.
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