Quantum transport in ballistic quantum dots

D. K. Ferry, R. A. Akis, D. P. Pivin, J. P. Bird, N. Holmberg, F. Badrieh, Dragica Vasileska

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Carriers in small 3D quantum boxes take us from unintentional quantum dots in MOSFETs (arising from the doping fluctuations) to single-electron quantum dots in semiconductor heterostructures. In between these two extremes are the realm of open, ballistic quantum dots, in which the transport can be quite regular. Several issues must be considered in treating the transport in these dots, among which are: (1) phase coherence within the dot; (2) the transition between semi-classical and fully quantum transport, (3) the role of the contacts, vis-à-vis the fabricated boundaries, and (4) the actual versus internal boundaries. In this paper, we discuss these issues, including the primary observables in experiment, the intrinsic nature of oscillatory behavior in magnetic field and dot size, and the connection to semi-classical transport emphasizing the importance of the filtering by the input (and output) quantum point contacts.

Original languageEnglish (US)
Pages (from-to)137-144
Number of pages8
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume3
Issue number1-3
StatePublished - Oct 16 1998

Fingerprint

Ballistics
ballistics
Semiconductor quantum dots
quantum dots
phase coherence
Point contacts
boxes
Heterojunctions
field effect transistors
Doping (additives)
Semiconductor materials
Magnetic fields
Electrons
output
magnetic fields
electrons
Experiments

Keywords

  • Ballistic quantum dot
  • Quantum transport

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Ferry, D. K., Akis, R. A., Pivin, D. P., Bird, J. P., Holmberg, N., Badrieh, F., & Vasileska, D. (1998). Quantum transport in ballistic quantum dots. Physica E: Low-Dimensional Systems and Nanostructures, 3(1-3), 137-144.

Quantum transport in ballistic quantum dots. / Ferry, D. K.; Akis, R. A.; Pivin, D. P.; Bird, J. P.; Holmberg, N.; Badrieh, F.; Vasileska, Dragica.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 3, No. 1-3, 16.10.1998, p. 137-144.

Research output: Contribution to journalArticle

Ferry, DK, Akis, RA, Pivin, DP, Bird, JP, Holmberg, N, Badrieh, F & Vasileska, D 1998, 'Quantum transport in ballistic quantum dots', Physica E: Low-Dimensional Systems and Nanostructures, vol. 3, no. 1-3, pp. 137-144.
Ferry DK, Akis RA, Pivin DP, Bird JP, Holmberg N, Badrieh F et al. Quantum transport in ballistic quantum dots. Physica E: Low-Dimensional Systems and Nanostructures. 1998 Oct 16;3(1-3):137-144.
Ferry, D. K. ; Akis, R. A. ; Pivin, D. P. ; Bird, J. P. ; Holmberg, N. ; Badrieh, F. ; Vasileska, Dragica. / Quantum transport in ballistic quantum dots. In: Physica E: Low-Dimensional Systems and Nanostructures. 1998 ; Vol. 3, No. 1-3. pp. 137-144.
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