Magnetotransport in quasi-ballistic narrow wires

Y. Ochiai, K. Yamamoto, T. Onishi, K. Ishibashi, J. P. Bird, Y. Aoyagi, T. Sugano, D. K. Ferry

Research output: Contribution to journalArticle

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Abstract

We are studying quantum interference effects in narrow GaAs/AlGaAs wires of the quasi-ballistic regime, where the wire dimensions are comparable to or less than the phase coherence length of electron transport. By analysing the auto-correlation function of the universal conductance fluctuations in low field magnetoresistances, we obtained the wire-width and the magnetic field dependences of the correlation field and observed phase-coherence behaviors of electron waves. Estimating the boundary correlation field as ωcτ = 1, we can discuss a mean free path in the split-gated wire. Such a boundary field analysis indicates a possibility of determination of the microscopic mean free path of quantum narrow wires.

Original languageEnglish (US)
Pages (from-to)357-360
Number of pages4
JournalPhysica B: Physics of Condensed Matter
Volume201
Issue numberC
DOIs
StatePublished - 1994

Fingerprint

Galvanomagnetic effects
Ballistics
ballistics
wire
Wire
phase coherence
mean free path
Magnetoresistance
Autocorrelation
autocorrelation
aluminum gallium arsenides
electrons
estimating
Magnetic fields
interference
Electrons
magnetic fields

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Ochiai, Y., Yamamoto, K., Onishi, T., Ishibashi, K., Bird, J. P., Aoyagi, Y., ... Ferry, D. K. (1994). Magnetotransport in quasi-ballistic narrow wires. Physica B: Physics of Condensed Matter, 201(C), 357-360. https://doi.org/10.1016/0921-4526(94)91114-2

Magnetotransport in quasi-ballistic narrow wires. / Ochiai, Y.; Yamamoto, K.; Onishi, T.; Ishibashi, K.; Bird, J. P.; Aoyagi, Y.; Sugano, T.; Ferry, D. K.

In: Physica B: Physics of Condensed Matter, Vol. 201, No. C, 1994, p. 357-360.

Research output: Contribution to journalArticle

Ochiai, Y, Yamamoto, K, Onishi, T, Ishibashi, K, Bird, JP, Aoyagi, Y, Sugano, T & Ferry, DK 1994, 'Magnetotransport in quasi-ballistic narrow wires', Physica B: Physics of Condensed Matter, vol. 201, no. C, pp. 357-360. https://doi.org/10.1016/0921-4526(94)91114-2
Ochiai Y, Yamamoto K, Onishi T, Ishibashi K, Bird JP, Aoyagi Y et al. Magnetotransport in quasi-ballistic narrow wires. Physica B: Physics of Condensed Matter. 1994;201(C):357-360. https://doi.org/10.1016/0921-4526(94)91114-2
Ochiai, Y. ; Yamamoto, K. ; Onishi, T. ; Ishibashi, K. ; Bird, J. P. ; Aoyagi, Y. ; Sugano, T. ; Ferry, D. K. / Magnetotransport in quasi-ballistic narrow wires. In: Physica B: Physics of Condensed Matter. 1994 ; Vol. 201, No. C. pp. 357-360.
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