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

Quantum dots with Rashba spin-orbit coupling.

M Governale1

  • 1Institut für Theoretische Festkörperphysik, Universität Karlsruhe, D-76128 Karlsruhe, Germany.

Physical Review Letters
|November 22, 2002
PubMed
Summary

Spin-orbit coupling in quantum dots suppresses Hund's rule. An in-plane Zeeman field induces paramagnetic behavior and spin texture, impacting electronic structure.

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

Ex-ante measure of patent quality reveals intrinsic fitness for citation-network growth.

Physical review. E·2019
Same author

Fame and obsolescence: Disentangling growth and aging dynamics of patent citations.

Physical review. E·2017
Same author

Carrier-density-controlled anisotropic spin susceptibility of two-dimensional hole systems.

Physical review letters·2013
Same author

Adiabatic pumping in a superconductor-normal-superconductor weak link.

Physical review letters·2005

Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Materials science

Background:

  • Understanding the electronic structure of quantum dots is crucial for developing novel electronic and spintronic devices.
  • Spin-orbit coupling significantly influences the behavior of electrons in confined systems.
  • Few-electron quantum dots offer a unique platform to study fundamental quantum mechanical interactions.

Purpose of the Study:

  • To investigate the impact of spin-orbit coupling on the electronic structure of few-electron interacting quantum dots.
  • To analyze how Hund's rule is affected by the interplay of Rashba effect and exchange interaction.
  • To explore the influence of an in-plane Zeeman field on quantum dot properties.

Main Methods:

  • Spin-density functional theory (SDFT) was employed for calculations.
  • Ground-state properties were systematically computed as a function of electron number (N).
  • The effects of Rashba spin-orbit coupling and exchange interactions were analyzed.

Main Results:

  • A suppression of Hund's rule was observed due to competing Rashba and exchange effects.
  • The introduction of an in-plane Zeeman field induced paramagnetic behavior in closed-shell configurations.
  • Spin texture in space was identified under the influence of the Zeeman field.

Conclusions:

  • Spin-orbit coupling plays a critical role in determining the electronic and magnetic properties of quantum dots.
  • The findings provide insights into controlling quantum dot behavior for potential applications in quantum computing and spintronics.
  • The interplay between different quantum phenomena offers avenues for novel device functionalities.

Related Experiment Videos