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Electronic coherence in metals: Comparing weak localization and time-dependent conductance fluctuations

A. Trionfi, S. Lee, and D. Natelson
Phys. Rev. B 70, 041304(R) – Published 14 July 2004

Abstract

Quantum corrections to the conductivity allow experimental assessment of electronic coherence in metals. We consider whether independent measurements of different corrections are quantitatively consistent, particularly in systems with spin-orbit or magnetic impurity scattering. We report weak localization and time-dependent universal conductance fluctuation data in quasi-one- and two-dimensional AuPd wires between 2 and 20K. The data inferred from both methods are in excellent quantitative agreement, implying that precisely the same coherence length is relevant to both corrections.

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  • Received 7 May 2004

DOI:https://doi.org/10.1103/PhysRevB.70.041304

©2004 American Physical Society

Authors & Affiliations

A. Trionfi, S. Lee, and D. Natelson

  • Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, USA

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Issue

Vol. 70, Iss. 4 — 15 July 2004

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