Evidence of momentum dependent hybridization in Ce2Co0.8Si3.2
P. Starowicz, R. Kurleto, J. Goraus, H. Schwab, M. Szlawska, F., Forster, A. Szytula, I. Vobornik, D. Kaczorowski, F. Reinert
TL;DR
This study uses ARPES to reveal highly anisotropic hybridization between conduction electrons and 4f electrons in Ce2Co0.8Si3.2, showing momentum-dependent effects in its electronic structure.
Contribution
It provides direct experimental evidence of momentum-dependent hybridization in a Kondo lattice system, highlighting anisotropic interactions in Ce2Co0.8Si3.2.
Findings
Kondo resonance observed below coherence temperature
Hybridization strength varies with Fermi vectors
Anisotropic hybridization between conduction and 4f electrons
Abstract
We studied the electronic structure of the Kondo lattice system Ce2Co0.8Si3.2 by angle-resolved photoemission spectroscopy (ARPES). The spectra obtained below the coherence temperature consist of a Kondo resonance, its spin-orbit partner and a number of dispersing bands. The quasiparticle weight related to the Kondo peak depends strongly on Fermi vectors associated with bulk bands. This indicates a highly anisotropic hybridization between conduction band and 4f electrons - V_{cf} in Ce2Co0.8Si3.2.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.