Abstract
The integration of strong electron correlations into topological systems represents a rapidly evolving research direction that is significantly advancing the exploration of topological materials. Here, we discovered that abnormal Mott physics can emerge even in weakly correlated 4f fermions through their interplay with topological singularity. Employing ab initio many-body perturbation theory combined with dynamical mean field theory, we show that 4f electrons near the topological singular point experience strong effective Coulomb repulsion, as hybridization channels are blocked near the singularity. As a result, a Mott-like self-energy emerges, forbidding the coexistence of 4f quasiparticles and the topological singularity at the same energy level in HoPtBi, PrPtBi, and PrAlGe. The formation of 4f quasiparticles is highly dependent on the energy of the topological singularity relative to the Fermi level. This effect is suggested to be responsible for the selective quantum phenomena observed between heavy fermion behavior from Kondo resonance and anomalous transport from nontrivial topological states.
Recommended Citation
B. Kang et al., "Topological Singularity-induced Mott-like Self-energy and its Impact on Kondo Cloud Formation," Communications Materials, vol. 7, no. 1, article no. 43, Nature Research, Dec 2026.
The definitive version is available at https://doi.org/10.1038/s43246-025-01052-2
Department(s)
Physics
Publication Status
Open Access
International Standard Serial Number (ISSN)
2662-4443
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2026 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Dec 2026
Comments
Center for High Performance Computing, Grant DMR-2317013