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The de Broglie Wavelength02:32

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In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Published on: April 4, 2017

Quantum interference in radial heterostructure nanowires.

Minkyung Jung1, Joon Sung Lee, Woon Song

  • 1National Creative Research Initiative, Center for Smart Molecular Memory, Electronics and Telecommunication Research Institute, Daejeon 305-700, Korea.

Nano Letters
|September 5, 2008
PubMed
Summary
This summary is machine-generated.

Quantum interference phenomena were observed in Indium Oxide/Indium Oxide (In2O3/InOx) core/shell nanowires. Both Aharonov-Bohm (h/e) and Altshuler-Aronov-Spivak (h/2e) oscillations were detected, showing a crossover at low temperatures.

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Area of Science:

  • Mesoscopic physics
  • Condensed matter physics
  • Nanotechnology

Background:

  • Core/shell heterostructure nanowires are promising mesoscopic systems for exploring quantum interference.
  • Understanding quantum phenomena in these nanostructures is crucial for future electronic devices.

Purpose of the Study:

  • To experimentally observe and analyze quantum interference phenomena in radial In2O3/InOx core/shell heterostructure nanowires.
  • To investigate the influence of core width on quantum oscillations and current flow.

Main Methods:

  • Fabrication of radial In2O3/InOx core/shell heterostructure nanowires.
  • Low-temperature magnetoresistance measurements.
  • Analysis of Aharonov-Bohm (h/e) and Altshuler-Aronov-Spivak (h/2e) oscillations.

Main Results:

  • Experimental observation of both h/e and h/2e oscillations in the nanowires.
  • Demonstration of a crossover from h/2e to h/e oscillations with increasing magnetic field in long channel devices.
  • Correlation between oscillation period and core width, indicating dominant current flow at the core/shell interface.

Conclusions:

  • Radial In2O3/InOx core/shell nanowires exhibit distinct quantum interference effects.
  • The core/shell interface plays a critical role in charge transport and quantum phenomena.
  • These findings advance the understanding of quantum transport in complex nanostructures.