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

Sequential tunneling through molecular spin rings.

Jörg Lehmann1, Daniel Loss

  • 1Department of Physics und Astronomy, Universität Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland.

Physical Review Letters
|May 16, 2007
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

Patient-derived tissue slice cultures from endoscopic biopsies as a translational ex vivo model for inflammatory bowel diseases.

Clinical and experimental medicine·2026
Same author

PPARγ controls I3C-mediated anti-inflammatory effects through the NF-κB/IL-6 pathway on gut inflammation models.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2026
Same author

Endothelial dysfunction and metabolic biomarkers in post-COVID-19 syndrome.

Scientific reports·2026
Same author

Proteomic profiling links increased mast cell activity in regenerating callus to impaired scaffold-guided bone regeneration in diabetic rats.

Bone·2026
Same author

Readout Sweet Spots for Spin Qubits with Strong Spin-Orbit Interaction.

Physical review letters·2026
Same author

Dysregulated Protease Homeostasis Defines Primary FSGS.

Kidney360·2026
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

Electrical transport through spin rings shows contact-site dependent current. Antiferromagnetic coupling can suppress conductance at adjacent sites due to Zener double-exchange.

Area of Science:

  • Condensed matter physics
  • Molecular electronics
  • Quantum magnetism

Background:

  • Investigating electrical transport in molecular systems is crucial for developing novel electronic devices.
  • Understanding the interplay between spin interactions and charge transport in molecular rings is a key challenge.
  • Heisenberg-coupled spins and easy-axis anisotropy introduce complex magnetic behaviors.

Purpose of the Study:

  • To explore electrical transport properties of molecules with Heisenberg-coupled spins in a ring.
  • To analyze the influence of Zener double-exchange on transport in the charged state.
  • To investigate the contact-site dependence of current and conductance.

Main Methods:

  • Theoretical modeling of electrical transport through a molecular ring.

Related Experiment Videos

  • Inclusion of Heisenberg spin coupling and easy-axis anisotropy.
  • Analysis of Zener double-exchange mechanism in the charged state.
  • Calculation of zero-bias conductance for different contact configurations.

    • Main Results:

    • A significant contact-site dependence of the electrical current was observed.
    • Zener double-exchange mechanism was identified as the link between spin structure and transport.
    • Antiferromagnetic coupling of spins can lead to complete suppression of zero-bias conductance.
    • Suppression occurs specifically when the molecular ring is contacted at adjacent sites.

    Conclusions:

    • The spin structure of molecular rings profoundly impacts electrical transport properties.
    • Contact geometry is a critical factor in controlling current flow in such systems.
    • Exploiting Zener double-exchange offers a pathway to tune and control molecular electronic devices.