Magnetotransport in a chaotic scattering cavity with tunable electron density

M. W. Keller*, O. Millo, A. Mittal, D. E. Prober, R. N. Sacks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

89 Scopus citations


We have measured the resistance versus magnetic field and Fermi energy for two stadium-shaped cavities in which chaotic scattering is expected. We fit the power spectra of the magnetoresistance fluctuations to semiclassical chaotic scattering theory and find a characteristic field which scales with cavity dimensions as predicted by classical simulations. Measurements of conductance versus Fermi energy indicate a significant contribution from short, non-chaotic paths. We have also studied the energy-averaged conductance as a function of magnetic field. We observe a ballistic weak localization effect similar to that predicted by recent calculations.

Original languageAmerican English
Pages (from-to)501-506
Number of pages6
JournalSurface Science
Issue number1-3
StatePublished - 20 Mar 1994
Externally publishedYes

Bibliographical note

Funding Information:
We thankR .G. Wheeler,A .D. Stone,a nd H.U. Baranger for helpful discussions.R esearch supported by NSF DMR 9112752a nd equipment purchasedu nder NSF DMR 9112451.


Dive into the research topics of 'Magnetotransport in a chaotic scattering cavity with tunable electron density'. Together they form a unique fingerprint.

Cite this