Negative Temperature Derivative of Resistivity in Thin Potassium Samples: The Gurzhi Effect?

Z. -Z. Yu, M. Haerle, J. W. Zwart, J. Bass, W. P. Pratt, Jr., and P. A. Schroeder
Phys. Rev. Lett. 52, 368 – Published 30 January 1984
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Abstract

The resistivity of free-hanging K wires cooled in He gas varies anomalously with temperature when the diameter d becomes comparable to the mean free path lei for scattering of electrons by impurities. Wires with dlei display a negative dρdT in the vicinity of 1 K. It is suggested that this is the first experimental evidence for an interaction between surface scattering and normal electron-electron scattering as first proposed by Gurzhi. The new data also show that previous explanations of K data of Rowlands et al. are inadequate.

  • Received 18 October 1983

DOI:https://doi.org/10.1103/PhysRevLett.52.368

©1984 American Physical Society

Authors & Affiliations

Z. -Z. Yu, M. Haerle, J. W. Zwart, J. Bass, W. P. Pratt, Jr., and P. A. Schroeder

  • Physics and Astronomy Department, Michigan State University, East Lansing, Michigan 48824

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Vol. 52, Iss. 5 — 30 January 1984

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