Magnetic Excitations in UTe2
Author Information
Author(s): Thomas Halloran, Peter Czajka, Gicela Saucedo Salas, Corey E. Frank, Chang-Jong Kang, J. A. Rodriguez-Rivera, Jakob Lass, Daniel G. Mazzone, Marc Janoschek, Gabriel Kotliar, Nicholas P. Butch
Primary Institution: NIST Center for Neutron Research
Hypothesis
What is the connection between f-electron correlations and magnetic excitations in UTe2?
Conclusion
The study reveals that the magnetic excitations in UTe2 are likely due to interband spin excitons arising from f-electron hybridization.
Supporting Evidence
- The magnetic excitations emerge from the Brillouin zone boundary at high symmetry points.
- The scattering intensity is consistent with that expected from U3+/U4+ f-electron spins.
- The measured scattering intensity is independent of an applied magnetic field up to 11 T.
Takeaway
Scientists studied a material called UTe2 to understand its magnetic properties, finding that its magnetism comes from how certain electrons interact.
Methodology
Inelastic neutron scattering experiments were performed on a coaligned mosaic of single crystalline samples of UTe2.
Limitations
The study could not resolve the proposed spin-resonance excitation and relied on a mosaic of coaligned samples rather than a single crystal.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website