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Peer-reviewedCC BY 4.0Acta Physica Polonica B

Hybridization Effects in CeCoIn5 Studied by Angle-resolved Photoemission Spectroscopy

  • R Kurleto
  • M Rosmus
  • Ł Walczak
  • Antonio Tejeda
  • D Gnida
  • D Kaczorowski
  • K Kissner
  • F Reinert
  • P Starowicz
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Abstract

We studied the electronic structure of a canonical heavy fermion superconductor CeCoIn5 using angle-resolved photoelectron spectroscopy (ARPES). We observed a non-uniform distribution of 4f-derived spectral weight across the Fermi surface map measured below the coherence temperature (T=6 K lt T coh≈ 45 K). Different effects of the coupling between 4f-states and conduction bands were observed near the Fermi level (E F): (i) rapid change of the band slope and increasing 4f spectral contribution, when approaching E F, (ii) presence of heavy quasiparticle bands (m⋆ ∼ 100me). Abstract Published by the Jagiellonian University 2026 authors

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Cite

BibTeXRIS
BibTeX
@article{kurleto2026hybridization,
  title = {{Hybridization Effects in CeCoIn5 Studied by Angle-resolved Photoemission Spectroscopy}},
  author = {R Kurleto and M Rosmus and Ł Walczak and Antonio Tejeda and D Gnida and D Kaczorowski and K Kissner and F Reinert and P Starowicz},
  journal = {Acta Physica Polonica B},
  year = {2026},
  month = may,
  doi = {10.5506/aphyspolb.57.5-a20},
  url = {https://hal.science/hal-05839796v1},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Hybridization Effects in CeCoIn5 Studied by Angle-resolved Photoemission Spectroscopy
AU  - R Kurleto
AU  - M Rosmus
AU  - Ł Walczak
AU  - Antonio Tejeda
AU  - D Gnida
AU  - D Kaczorowski
AU  - K Kissner
AU  - F Reinert
AU  - P Starowicz
PY  - 2026
DA  - 2026/05/15
JO  - Acta Physica Polonica B
DO  - 10.5506/aphyspolb.57.5-a20
UR  - https://hal.science/hal-05839796v1
AB  - We studied the electronic structure of a canonical heavy fermion superconductor CeCoIn_5 using angle-resolved photoelectron spectroscopy (ARPES). We observed a non-uniform distribution of 4f-derived spectral weight across the Fermi surface map measured below the coherence temperature (T=6 K lt T_ coh≈ 45 K). Different effects of the coupling between 4f-states and conduction bands were observed near the Fermi level (E_ F): (i) rapid change of the band slope and increasing 4f spectral contribution, when approaching E_ F, (ii) presence of heavy quasiparticle bands (m^⋆ ∼ 100m_e). Abstract Published by the Jagiellonian University 2026 authors
SN  - 0587-4254
SN  - 1509-5770
ER  -