Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires

A. W. Widjaja, N. Sasaki, K. Yamamoto, Y. Ochiai, K. Ishibashi, J. P. Bird, Y. Aoyagi, T. Sugano, D. K. Ferry

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We study quantum interference effects which are observed in the low temperature magnetoresistance of corrugated-gate wires fabricated in the GaAs/AlGaAs modulation-doped heterostructure system. Negative magnetoresistance, which appears over a large range of magnetic field, is observed. In addition, small oscillations in the magnetoresistance are observed. We believe these results are caused by boundary (or geometry-induced) scattering, within the gated wire, which evolves as the nature of the system changes from a quantum-dot array to a wire with weak modulation.

Original languageEnglish (US)
Pages (from-to)316-322
Number of pages7
JournalSuperlattices and Microstructures
Volume20
Issue number3
StatePublished - Oct 1996

Fingerprint

Magnetoresistance
aluminum gallium arsenides
wire
Wire
Modulation
modulation
Temperature
Semiconductor quantum dots
Heterojunctions
quantum dots
Scattering
Magnetic fields
interference
oscillations
Geometry
geometry
scattering
magnetic fields
gallium arsenide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Widjaja, A. W., Sasaki, N., Yamamoto, K., Ochiai, Y., Ishibashi, K., Bird, J. P., ... Ferry, D. K. (1996). Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires. Superlattices and Microstructures, 20(3), 316-322.

Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires. / Widjaja, A. W.; Sasaki, N.; Yamamoto, K.; Ochiai, Y.; Ishibashi, K.; Bird, J. P.; Aoyagi, Y.; Sugano, T.; Ferry, D. K.

In: Superlattices and Microstructures, Vol. 20, No. 3, 10.1996, p. 316-322.

Research output: Contribution to journalArticle

Widjaja, AW, Sasaki, N, Yamamoto, K, Ochiai, Y, Ishibashi, K, Bird, JP, Aoyagi, Y, Sugano, T & Ferry, DK 1996, 'Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires', Superlattices and Microstructures, vol. 20, no. 3, pp. 316-322.
Widjaja AW, Sasaki N, Yamamoto K, Ochiai Y, Ishibashi K, Bird JP et al. Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires. Superlattices and Microstructures. 1996 Oct;20(3):316-322.
Widjaja, A. W. ; Sasaki, N. ; Yamamoto, K. ; Ochiai, Y. ; Ishibashi, K. ; Bird, J. P. ; Aoyagi, Y. ; Sugano, T. ; Ferry, D. K. / Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires. In: Superlattices and Microstructures. 1996 ; Vol. 20, No. 3. pp. 316-322.
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AU - Bird, J. P.

AU - Aoyagi, Y.

AU - Sugano, T.

AU - Ferry, D. K.

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