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

Spin-orbit coupling in the Mott insulator Ca(2)RuO(4).

T Mizokawa1, L H Tjeng, G A Sawatzky

  • 1Department of Complexity Science and Engineering, University of Tokyo, Tokyo 113-0033, Japan.

Physical Review Letters
|August 11, 2001
PubMed
Summary

Temperature significantly alters the orbital population in Calcium Ruthenium Oxide (Ca(2)RuO(4)). Strong spin-orbit coupling and minor structural changes drive a temperature-dependent shift in spin and orbital anisotropy.

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

Observation of Anisotropic Dispersive Dark-Exciton Dynamics in CrSBr.

Physical review letters·2025
Same author

Direct observation of V-trimers in the crystal structure of LiVO<sub>2</sub>.

Communications chemistry·2025
Same author

Coincident onset of charge order and pseudogap in a homogeneous high-temperature superconductor.

Nature communications·2025
Same author

Frustrated spin-1/2 chains in a correlated metal.

Nature materials·2025
Same author

Mixed-valence state in the dilute-impurity regime of La-substituted SmB<sub>6</sub>.

Nature communications·2024
Same author

Origin of Magnetism in a Supposedly Nonmagnetic Osmium Oxide.

Physical review letters·2024

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Solid-State Chemistry

Background:

  • Calcium Ruthenium Oxide (Ca(2)RuO(4)) is a Mott insulator exhibiting complex electronic properties.
  • Understanding the interplay of spin, orbital, and lattice degrees of freedom is crucial for Mott insulators.

Purpose of the Study:

  • To investigate the temperature-dependent electronic behavior of the 4d t(2g) band in Ca(2)RuO(4).
  • To elucidate the mechanisms behind the observed spin and orbital anisotropy changes.

Main Methods:

  • O 1s X-ray Absorption Spectroscopy (XAS) to probe orbital populations.
  • Spin-resolved circularly polarized Photoemission Spectroscopy (PES) to study orbital angular momentum.
  • Model Hartree-Fock calculations for theoretical support.

Related Experiment Videos

Main Results:

  • Significant temperature-induced changes in the 4d t(2g) orbital population were observed.
  • A substantial orbital angular momentum was detected in the Ru 4d t(2g) band.
  • Experimental findings correlate with theoretical calculations.

Conclusions:

  • The interplay of strong spin-orbit coupling and minor RuO(6) octahedral distortions drives the temperature-dependent anisotropy.
  • This cooperative effect leads to a unique changeover in spin and orbital anisotropy in Ca(2)RuO(4).