Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots

R. Brunner; R. Meisels; F. Kuchar; M. Elhassan; J. P. Bird; D. K. Ferry; K. Ishibashi

doi:10.1063/1.1994349

Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots

R. Brunner, R. Meisels, F. Kuchar, M. Elhassan, J. P. Bird, D. K. Ferry, K. Ishibashi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Closed and open quantum dots are low-dimensional electron systems with different strength of coupling to the two-dimensional environment. In the case of a the closed dot, only transport by tunneling is possible. Our work, on the the other hand, investigates the transport of open quantum dots strongly coupled to the surrounding two-dimensional electron system. The open dot show peculiar peaks in their magnetoresistance. We compare experimental results with those of a semi-classical model using trajectories in a parabolic potential. Using a velocity distribution of the incoming electrons based on Fermi-Dirac statistics we can explain the temperature dependence of the peak heights.

Original language	English (US)
Title of host publication	PHYSICS OF SEMICONDUCTORS
Subtitle of host publication	27th International Conference on the Physics of Semiconductors, ICPS-27
Pages	801-802
Number of pages	2
DOIs	https://doi.org/10.1063/1.1994349
State	Published - Jun 30 2005
Event	PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, United States Duration: Jul 26 2004 → Jul 30 2004

Publication series

Name	AIP Conference Proceedings
Volume	772
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27
Country/Territory	United States
City	Flagstaff, AZ
Period	7/26/04 → 7/30/04

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
General Physics and Astronomy
Nature and Landscape Conservation

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10.1063/1.1994349

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Brunner, R., Meisels, R., Kuchar, F., Elhassan, M., Bird, J. P., Ferry, D. K., & Ishibashi, K. (2005). Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots. In PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 (pp. 801-802). (AIP Conference Proceedings; Vol. 772). https://doi.org/10.1063/1.1994349

Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots. / Brunner, R.; Meisels, R.; Kuchar, F. et al.
PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27. 2005. p. 801-802 (AIP Conference Proceedings; Vol. 772).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Brunner, R, Meisels, R, Kuchar, F, Elhassan, M, Bird, JP, Ferry, DK & Ishibashi, K 2005, Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots. in PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27. AIP Conference Proceedings, vol. 772, pp. 801-802, PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27, Flagstaff, AZ, United States, 7/26/04. https://doi.org/10.1063/1.1994349

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abstract = "Closed and open quantum dots are low-dimensional electron systems with different strength of coupling to the two-dimensional environment. In the case of a the closed dot, only transport by tunneling is possible. Our work, on the the other hand, investigates the transport of open quantum dots strongly coupled to the surrounding two-dimensional electron system. The open dot show peculiar peaks in their magnetoresistance. We compare experimental results with those of a semi-classical model using trajectories in a parabolic potential. Using a velocity distribution of the incoming electrons based on Fermi-Dirac statistics we can explain the temperature dependence of the peak heights.",

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AB - Closed and open quantum dots are low-dimensional electron systems with different strength of coupling to the two-dimensional environment. In the case of a the closed dot, only transport by tunneling is possible. Our work, on the the other hand, investigates the transport of open quantum dots strongly coupled to the surrounding two-dimensional electron system. The open dot show peculiar peaks in their magnetoresistance. We compare experimental results with those of a semi-classical model using trajectories in a parabolic potential. Using a velocity distribution of the incoming electrons based on Fermi-Dirac statistics we can explain the temperature dependence of the peak heights.

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Magnetoresistance experiments and quasi-classical calculations regarding backscattering in open quantum dots

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