Observation of Aharonov-Bohm Oscillations in the Magnetoresistance of a GaAs/AlGaAs Quantum Dot

Jonathan P. Bird; Koji Ishibashi; Yoshinobu Aoyagi; Takuo Sugano

doi:10.1143/JJAP.33.2509

Observation of Aharonov-Bohm Oscillations in the Magnetoresistance of a GaAs/AlGaAs Quantum Dot

Jonathan P. Bird
, Koji Ishibashi
, Yoshinobu Aoyagi
, Takuo Sugano

Department of Electrical Engineering

The Institute for Physical

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We discuss the observation of Aharonov-Bohm oscillations in the magnetoresistance of a 1 µm GaAs/AlGaAs quantum dot. The oscillation period of 6 mT gives good agreement with the expected dimensions of the dot, implying Coulomb blockade effects to be insignificant in this case. The oscillations wash out at temperatures above 0.5 K, consistent with the expected energy spacing of the discrete states within the dot.

Original language	English
Pages (from-to)	2509
Number of pages	1
Journal	Japanese Journal of Applied Physics
Volume	33
Issue number	5R
DOIs	https://doi.org/10.1143/JJAP.33.2509
State	Published - May 1994

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title = "Observation of Aharonov-Bohm Oscillations in the Magnetoresistance of a GaAs/AlGaAs Quantum Dot",

abstract = "We discuss the observation of Aharonov-Bohm oscillations in the magnetoresistance of a 1 µm GaAs/AlGaAs quantum dot. The oscillation period of 6 mT gives good agreement with the expected dimensions of the dot, implying Coulomb blockade effects to be insignificant in this case. The oscillations wash out at temperatures above 0.5 K, consistent with the expected energy spacing of the discrete states within the dot.",

author = "Bird, \{Jonathan P.\} and Koji Ishibashi and Yoshinobu Aoyagi and Takuo Sugano",

year = "1994",

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T1 - Observation of Aharonov-Bohm Oscillations in the Magnetoresistance of a GaAs/AlGaAs Quantum Dot

AU - Bird, Jonathan P.

AU - Ishibashi, Koji

AU - Aoyagi, Yoshinobu

AU - Sugano, Takuo

PY - 1994/5

Y1 - 1994/5

N2 - We discuss the observation of Aharonov-Bohm oscillations in the magnetoresistance of a 1 µm GaAs/AlGaAs quantum dot. The oscillation period of 6 mT gives good agreement with the expected dimensions of the dot, implying Coulomb blockade effects to be insignificant in this case. The oscillations wash out at temperatures above 0.5 K, consistent with the expected energy spacing of the discrete states within the dot.

AB - We discuss the observation of Aharonov-Bohm oscillations in the magnetoresistance of a 1 µm GaAs/AlGaAs quantum dot. The oscillation period of 6 mT gives good agreement with the expected dimensions of the dot, implying Coulomb blockade effects to be insignificant in this case. The oscillations wash out at temperatures above 0.5 K, consistent with the expected energy spacing of the discrete states within the dot.

UR - https://www.scopus.com/pages/publications/0028423550

U2 - 10.1143/JJAP.33.2509

DO - 10.1143/JJAP.33.2509

M3 - Article

AN - SCOPUS:0028423550

SN - 0021-4922

VL - 33

SP - 2509

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 5R

ER -

Observation of Aharonov-Bohm Oscillations in the Magnetoresistance of a GaAs/AlGaAs Quantum Dot

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