Phase Velocity Tuning in Quantum Point Contacts

  • Shingo Katsumoto
  • Naokatsu Sano
  • Shun-ichi Kobayashi
Conference paper


A simple method is proposed to tune the interference by gate voltage in a ring-shaped 2-dimensional electron system at the AlGaAs-GaAs interface. Experimental evidence of the effect is also presented.


Effective Potential Gate Voltage Conductance Channel Total Kinetic Energy Reflection Effect 


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Copyright information

© Springer Japan 1992

Authors and Affiliations

  • Shingo Katsumoto
    • 1
  • Naokatsu Sano
    • 2
  • Shun-ichi Kobayashi
    • 1
  1. 1.Department of Physics, Faculty of ScienceUniversity of TokyoBunkyoku, Tokyo, 113Japan
  2. 2.Department of Physics, Faculty of ScienceKwansei-Gakuin UniversityUegahara, Nishinomiya, 662Japan

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