Aharonov-Bohm oscillations in quantum dots: Precise departures from h/e periodicity

J. P. Bird; M. Stopa; R. P. Taylor; R. Newbury; Y. Aoyagi; T. Sugano

Aharonov-Bohm oscillations in quantum dots: Precise departures from h/e periodicity

J. P. Bird
, M. Stopa
, R. P. Taylor
, R. Newbury
, Y. Aoyagi
, T. Sugano

Department of Electrical Engineering

University at Buffalo

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

Abstract

We investigate precise departures from h/e periodicity in Aharonov-Bohm oscillations observed in the low temperature magneto-resistance of quantum dots. Period-doubling is apparent over well defined ranges of magnetic field, outside of which the oscillations revert to their single period. The precise nature of the doubling is reflected in a Fourier analysis of the oscillations, and is also confirmed by the results of self-consistent calculations. While the origin of this effect remains unclear we discuss several possible mechanisms, and also briefly consider the conditions necessary for observation of frequency-doubled oscillations.

Original language	English
Pages (from-to)	XIII-63
Journal	Superlattices and Microstructures
Volume	22
Issue number	1
State	Published - Jul 1997

Keywords

Aharonov-Bohm effect
Coulomb blockade
Quantum dots

Cite this

@article{4f8b21c3339e4771b0ac6fea923c8710,

title = "Aharonov-Bohm oscillations in quantum dots: Precise departures from h/e periodicity",

abstract = "We investigate precise departures from h/e periodicity in Aharonov-Bohm oscillations observed in the low temperature magneto-resistance of quantum dots. Period-doubling is apparent over well defined ranges of magnetic field, outside of which the oscillations revert to their single period. The precise nature of the doubling is reflected in a Fourier analysis of the oscillations, and is also confirmed by the results of self-consistent calculations. While the origin of this effect remains unclear we discuss several possible mechanisms, and also briefly consider the conditions necessary for observation of frequency-doubled oscillations.",

keywords = "Aharonov-Bohm effect, Coulomb blockade, Quantum dots",

author = "Bird, \{J. P.\} and M. Stopa and Taylor, \{R. P.\} and R. Newbury and Y. Aoyagi and T. Sugano",

year = "1997",

month = jul,

language = "English",

volume = "22",

pages = "XIII--63",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Elsevier Ltd",

number = "1",

}

TY - JOUR

T1 - Aharonov-Bohm oscillations in quantum dots

T2 - Precise departures from h/e periodicity

AU - Bird, J. P.

AU - Stopa, M.

AU - Taylor, R. P.

AU - Newbury, R.

AU - Aoyagi, Y.

AU - Sugano, T.

PY - 1997/7

Y1 - 1997/7

N2 - We investigate precise departures from h/e periodicity in Aharonov-Bohm oscillations observed in the low temperature magneto-resistance of quantum dots. Period-doubling is apparent over well defined ranges of magnetic field, outside of which the oscillations revert to their single period. The precise nature of the doubling is reflected in a Fourier analysis of the oscillations, and is also confirmed by the results of self-consistent calculations. While the origin of this effect remains unclear we discuss several possible mechanisms, and also briefly consider the conditions necessary for observation of frequency-doubled oscillations.

AB - We investigate precise departures from h/e periodicity in Aharonov-Bohm oscillations observed in the low temperature magneto-resistance of quantum dots. Period-doubling is apparent over well defined ranges of magnetic field, outside of which the oscillations revert to their single period. The precise nature of the doubling is reflected in a Fourier analysis of the oscillations, and is also confirmed by the results of self-consistent calculations. While the origin of this effect remains unclear we discuss several possible mechanisms, and also briefly consider the conditions necessary for observation of frequency-doubled oscillations.

KW - Aharonov-Bohm effect

KW - Coulomb blockade

KW - Quantum dots

UR - https://www.scopus.com/pages/publications/30244539659

M3 - Article

SN - 0749-6036

VL - 22

SP - XIII-63

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 1

ER -

Aharonov-Bohm oscillations in quantum dots: Precise departures from h/e periodicity

Abstract

Keywords

Other files and links

Fingerprint

Cite this