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Quantum interference of electrons in a field-controlled double-quantum-wire interferometer

Masahiro Okuda, Sei-ichi Miyazawa, Kazuhito Fujii, and Akira Shimizu
Phys. Rev. B 47, 4103(R) – Published 15 February 1993
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Abstract

Quantum interference effects are observed in a GaAs/AlxGa1xAs interferometer which consists of double quantum wires and triple Schottky gates. Both wires are straight, stacked in the growth direction, and coupled via a thin barrier. The electron wave function is controlled by tuning the gate voltages in such a way that an interferometer is constructed in the straight wires. A quasiballistic electron transport was confirmed, and oscillations of resistance with variation of the voltage of the central gate are clearly observed at 1.8 K.

  • Received 19 October 1992

DOI:https://doi.org/10.1103/PhysRevB.47.4103

©1993 American Physical Society

Authors & Affiliations

Masahiro Okuda and Sei-ichi Miyazawa

  • Canon Research Center, 5-1 Morinosato-Wakamiya, Astugi-shi, Kanagawa 243-01, Japan

Kazuhito Fujii

  • Department of Material Science, Keio University, 3-14-1, Hiyoshi, Yokohama 223, Japan

Akira Shimizu

  • Institute of Physics, University of Tokyo, Komaba, Meguro-ku, Tokyo 153, Japan

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Issue

Vol. 47, Iss. 7 — 15 February 1993

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