Dual Nature of Magnetism Driven by Momentum Dependent F-D Kondo Hybridization

Author

Byungkyun Kang
Yongbin Lee
Liqin Ke
Hyunsoo Kim, Missouri University of Science and TechnologyFollow
Myoung Hwan Kim
Chul Hong Park

Abstract

The intricate nature of magnetism in uranium-based Kondo lattices is a consequence of correlations between U-5f and conduction electrons. Previously, the source of magnetism has been ascribed to either Mott physics or Ruderman-Kittel-Kasuya-Yosida interaction, both of which are not fully applicable to uranium-based Kondo lattices. Using linearized quasiparticle self-consistent GW plus dynamical mean-field theory, we demonstrate a crossover from incoherent to coherent f-d Kondo cloud in the paramagnetic phase of UTe₂, USbTe and USbSe. As the transition occurs, we observe an augmented f-d coherence and Pauli-like magnetic susceptibility, with a substantial frozen magnetic moment of U-5f persisting. We show that momentum dependent f-d hybridization is responsible for the magnetic moments arising from the renormalized f electrons' van Hove singularity. Our findings provide a perspective to explain the dual nature of magnetism and the long-range magnetic ordering induced by pressure in UTe₂.

Recommended Citation

B. Kang et al., "Dual Nature of Magnetism Driven by Momentum Dependent F-D Kondo Hybridization," Communications Physics, vol. 7, no. 1, article no. 186, Nature Research, Dec 2024.

The definitive version is available at https://doi.org/10.1038/s42005-024-01631-8

Department(s)

Physics

Publication Status

Open Access

Comments

Texas Tech University, Grant NRF-2022R1A2C1005548

International Standard Serial Number (ISSN)

2399-3650

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 The Authors, All rights reserved.

Creative Commons Licensing

This work is licensed under a Creative Commons Attribution 4.0 License.

Publication Date

01 Dec 2024