Phys. Rev. B 77, 201407(R) (2008) [4 pages]

Model for organized current patterns in disordered conductors

Abstract

References

Citing Articles (3)

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Y. Japha¹, O. Entin-Wohlman^1,2, T. David¹, R. Salem¹, S. Aigner^3,4, J. Schmiedmayer^3,4, and R. Folman¹
¹Department of Physics, Ben-Gurion University of the Negev, P. O. Box 653, Be’er-Sheva 84105, Israel
²School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
³Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg, Germany
⁴Atominstitut der Sterreichischen Universitten, TU-Wien, Stadionalle 2, 1020 Vienna, Austria

Received 26 March 2008; published 29 May 2008

We present a general theory of current deviations in straight current-carrying wires with random imperfections, which quantitatively explains the recent observations of organized patterns of magnetic field corrugations above micrometer-scale evaporated wires. These patterns originate from the most efficient electron scattering by Fourier components of the wire imperfections with wavefronts along the ±45° direction. We show that long-range effects of surface or bulk corrugations are suppressed for narrow wires or wires having an electrically anisotropic resistivity.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.77.201407

DOI:

10.1103/PhysRevB.77.201407

PACS:

73.50.Bk, 03.75.Be, 05.40.−a, 37.10.Gh

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Phys. Rev. B 77, 201407(R) (2008) [4 pages]

Model for organized current patterns in disordered conductors