Phys. Rev. Lett. 87, 246801 (2001) [4 pages]Zero-Bias Anomaly in Disordered Wires |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
E. G. Mishchenko1,2,3, A. V. Andreev1,2, and L. I. Glazman4
1Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974
2Department of Physics, University of Colorado, CB 390, Boulder, Colorado 80309-0390
3L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow 117334, Russia
4Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455
Received 16 June 2001; published 19 November 2001
We calculate the low-energy tunneling density of states ν(ε,T) of an N-channel disordered wire, taking into account the electron-electron interaction nonperturbatively. The finite scattering rate 1/τ results in a crossover from the Luttinger liquid behavior at higher energies, ν∝εα, to the exponential dependence ν(ε,T = 0)∝exp(-ε*/ε) at low energies, where ε*∝1/(Nτ). At finite temperature T, the tunneling density of states depends on the energy through the dimensionless variable ε/sqrt[ε*T]. At the Fermi level ν(ε = 0,T)∝exp(-sqrt[ε*/T] ).
©2001 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v87/e246801
DOI: 10.1103/PhysRevLett.87.246801
PACS: 73.63.-b, 73.21.Hb, 73.23.Hk
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