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

Superconducting proximity effect at the paramagnetic-ferromagnetic transition.

T Kontos1, M Aprili, J Lesueur

  • 1CSNSM-CNRS, Bâtiment 108 Université Paris-Sud, 91405 Orsay, France.

Physical Review Letters
|November 5, 2004
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

Evidence for Atomic-Scale Vibron-Mediated Electron Bunching.

Physical review letters·2026
Same author

Fast and Continuous Detection of Single Microwave Photons via Photoassisted Quasiparticle Tunneling to a Superconducting Island.

Physical review letters·2026
Same author

Observation of strong tripartite coupling in a cavity-quantum circuit-antiferromagnet platform.

Nature materials·2026
Same author

Electrical control of the metal-insulator transition in a one dimensional device.

Nature communications·2026
Same author

Parametric Drive of a Double Quantum Dot in a Cavity.

Physical review letters·2025
Same author

Spectral signature of high-order photon processes enhanced by Cooper-pair pairing.

Nature communications·2025

Exchange-enhanced electron interactions near the paramagnetic-ferromagnetic transition were measured using tunneling spectroscopy. The electron-spin fluctuation coupling and exchange field were derived from the data.

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Mechanics

Background:

  • Electron-electron interactions significantly influence material properties, especially near magnetic phase transitions.
  • Understanding these interactions is crucial for developing novel electronic and spintronic devices.

Purpose of the Study:

  • To experimentally investigate exchange-enhanced electron-electron interactions at the paramagnetic-ferromagnetic transition.
  • To determine the electron-spin fluctuation coupling constant and the exchange field in magnetic materials.

Main Methods:

  • Proximity effect tunneling spectroscopy was employed to probe electron interactions.
  • The Usadel equations were solved for both paramagnetic and ferromagnetic states to analyze the tunneling spectra.

Related Experiment Videos

Main Results:

  • Tunneling spectra revealed distinct signatures of exchange-enhanced electron-electron interactions.
  • The electron-spin fluctuation coupling constant and the exchange field were successfully derived from the experimental data.

Conclusions:

  • The study provides experimental validation of theoretical models describing electron interactions at magnetic transitions.
  • The derived parameters offer insights into the magnetic behavior and electronic properties of the studied materials.