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Related Experiment Videos

Nanowire acting as a superconducting quantum interference device.

A Johansson1, G Sambandamurthy, D Shahar

  • 1Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.

Physical Review Letters
|October 4, 2005
PubMed
Summary
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Researchers studied the magnetotransport in amorphous indium-oxide superconducting wires. Below the critical temperature, resistance showed reproducible oscillations with magnetic field, similar to superconducting quantum interference devices.

Area of Science:

  • Condensed matter physics
  • Materials science

Background:

  • Superconducting materials exhibit unique quantum phenomena.
  • Amorphous indium-oxide is a material of interest for superconducting applications.

Purpose of the Study:

  • Investigate the magnetotransport properties of narrow amorphous indium-oxide wires.
  • Characterize the magnetic field-dependent resistance oscillations.

Main Methods:

  • Fabrication of amorphous indium-oxide wires with widths of 40-120 nm.
  • Experimental measurement of electrical resistance under varying magnetic fields.
  • Analysis of resistance oscillations below the superconducting transition temperature.

Main Results:

  • Observed clear and reproducible oscillations in wire resistance as a function of magnetic field.

Related Experiment Videos

  • The observed oscillations are analogous to those in superconducting quantum interference devices (SQUIDs).
  • Demonstrated unique magnetotransport behavior in nanoscale superconducting wires.

    • Conclusions:

    • Amorphous indium-oxide nanowires exhibit quantum oscillatory behavior in their magnetoresistance.
    • These findings suggest potential applications in nanoscale superconducting electronics.
    • The observed phenomena provide insights into the fundamental physics of superconductivity in confined geometries.