Quasiballistic correction to the density of states in three-dimensional metal
Abstract
We study the exchange correction to the density of states in the three-dimensional metal near the Fermi energy. In the ballistic limit, when the distance to the Fermi level exceeds the inverse transport relaxation time 1/τ, we find the correction linear in the distance from the Fermi level. By a large parameter ε F τ this ballistic correction exceeds the diffusive correction obtained earlier.
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