Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Experimental tunneling ratchets

Linke1, Humphrey, Lofgren

  • 1School of Physics, University of New South Wales, Sydney 2052, Australia. Division of Solid State Physics, Lund University, Box 118, 221 00 Lund, Sweden.

Science (New York, N.Y.)
|December 22, 1999
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Strong, ultranarrow peaks of longitudinal and hall resistances in the regime of breakdown of the quantum hall effect

Physical review letters·2000
Same author

Atomic layer growth on Al(111) by ion bombardment

Physical review letters·2000
Same author

Microcalorimeter energy-dispersive spectrometry using a low voltage scanning electron microscope

Journal of microscopy·2000
Same author

Modulated structure of Ag2SnO3 studied by high-resolution electron microscopy

Acta crystallographica. Section B, Structural science·2000
Same author

AcouStick: An optically tracked A-mode ultrasonography system for registration in image-guided neurosurgery

Stereotactic and functional neurosurgery·2000
Same author

Clinical Experience with Intermittent Androgen Suppression in Prostate Cancer: Minimum of 3 Years' Follow-Up.

Molecular urology·2000

Electron ratchets in semiconductor heterostructures show temperature-dependent flow reversal. This quantum effect differs from classical ratchets, explained by a wave-mechanical model.

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Semiconductor heterostructures

Background:

  • Electron ratchets utilize quantum confinement in semiconductor heterostructures.
  • Tunneling significantly influences particle flow in these systems.
  • Classical and quantum ratchets exhibit distinct behaviors.

Purpose of the Study:

  • To experimentally investigate adiabatically rocked electron ratchets.
  • To explore the role of tunneling in electron flow.
  • To confirm theoretical predictions on quantum ratchet behavior.

Main Methods:

  • Experimental study of electron ratchets under adiabatic rocking.
  • Analysis of electron flow in semiconductor heterostructures.
  • Development of a wave-mechanical model for electron transport.

Related Experiment Videos

Main Results:

  • Observed reversal of rocking-induced electron flow with temperature changes.
  • Demonstrated temperature-induced current reversal in quantum ratchets.
  • Validated theoretical predictions of differing classical and quantum ratchet dynamics.

Conclusions:

  • Electron ratchets exhibit unique temperature-dependent behavior due to quantum effects.
  • Tunneling plays a critical role in the observed phenomena.
  • The wave-mechanical model provides a clear explanation for the quantum ratchet's behavior.