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APS » Journals » Phys. Rev. B » Volume 47 » Issue 7
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Phys. Rev. B 47, 4103–4106 (1993)

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

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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

Received 19 October 1992; published in the issue dated 15 February 1993

Quantum interference effects are observed in a GaAs/AlxGa1-xAs 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.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.47.4103
DOI:
10.1103/PhysRevB.47.4103
PACS:
72.80.Ey, 73.20.Dx, 73.40.Kp
 
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