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

Geometry-dependent dephasing in small metallic wires.

D Natelson1, R L Willett, K W West

  • 1Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974, USA.

Physical Review Letters
|April 6, 2001
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

Superballistic flow of viscous electron fluid induced by edge magnetoplasmons in point contacts.

Nature communications·2026
Same author

Resonant Magnetophonon Emission by Supersonic Electrons in Ultrahigh-Mobility Two-Dimensional Systems.

Physical review letters·2026
Same author

Stripe-Nematic Phase of Composite Fermions.

Physical review letters·2026
Same author

Edge-State Selective Measurement of Dispersions in the Quantum Hall Regime.

Physical review letters·2026
Same author

Pushing Photons with Electrons: Observation of the Polariton Drag Effect.

Physical review letters·2025
Same author

Developing Fractional Quantum Hall States at Even-Denominator Fillings 1/6 and 1/8.

Physical review letters·2025

Researchers studied temperature effects on weak localization in metallic nanowires. Narrower wires followed theoretical predictions, while wider wires showed saturation, offering new insights into dephasing phenomena.

Area of Science:

  • Condensed matter physics
  • Materials science
  • Nanotechnology

Background:

  • Weak localization is a quantum interference phenomenon affecting conductivity in disordered conductors.
  • Understanding dephasing mechanisms in low-dimensional systems is crucial for electronic device applications.
  • Previous studies observed dephasing time saturation in wider metallic wires at low temperatures.

Purpose of the Study:

  • To investigate temperature-dependent weak localization in metallic nanowires.
  • To explore dephasing phenomena in a previously unexamined size regime, down to 5 nm width.
  • To provide new constraints on theoretical models of dephasing by varying sample geometry.

Main Methods:

  • Fabrication of metallic nanowires with widths down to 5 nm.

Related Experiment Videos

  • Temperature-dependent measurements of weak localization.
  • Analysis of the dephasing time (tau(phi)) as a function of temperature and wire width.

    • Main Results:

    • The dephasing time in the narrowest nanowires exhibited a low-temperature dependence consistent with quasi-1D theory (tau(phi) ~ T(-2/3)).
    • Wider nanowires of the same material showed a relative saturation of the dephasing time as temperature approached zero.
    • Both suppression and divergence of tau(phi) were observed by solely varying sample geometry.

    Conclusions:

    • The geometry-dependent behavior of dephasing time in metallic nanowires provides critical data for refining theoretical models.
    • The findings highlight the interplay between dimensionality and dephasing mechanisms in nanostructures.
    • This study advances the understanding of quantum transport phenomena in the nanoscale regime.