Orbital dichotomy of Fermi liquid properties in Sr 2 RuO 4 revealed by Raman spectroscopy - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Physical Review B Année : 2021

Orbital dichotomy of Fermi liquid properties in Sr 2 RuO 4 revealed by Raman spectroscopy

Benoît Baptiste
  • Fonction : Auteur
Chanchal Sow
  • Fonction : Auteur
Yoshiteru Maeno
  • Fonction : Auteur
Anne Forget
  • Fonction : Auteur
Dorothée Colson
  • Fonction : Auteur
Maximilien Cazayous
Alain Sacuto
  • Fonction : Auteur

Résumé

We report a polarization-resolved Raman spectroscopy study of the orbital dependence of the quasiparticles properties in the prototypical multi-band Fermi liquid Sr\textsubscript{2}RuO\textsubscript{4}. We show that the quasiparticle scattering rate displays $\omega^{2}$ dependence as expected for a Fermi liquid. Besides, we observe a clear polarization-dependence in the energy and temperature dependence of the quasiparticle scattering rate and mass, with the $d_{xz/yz}$ orbital derived quasiparticles showing significantly more robust Fermi liquid properties than the $d_{xy}$ orbital derived ones. The observed orbital dichotomy of the quasiparticles is consistent with the picture of Sr\textsubscript{2}RuO\textsubscript{4} as a Hund's metal. Our study establishes Raman scattering as a powerful probe of Fermi liquid properties in correlated metals.

Dates et versions

hal-03774704 , version 1 (11-09-2022)

Identifiants

Citer

J. -C. Philippe, Benoît Baptiste, Chanchal Sow, Yoshiteru Maeno, Anne Forget, et al.. Orbital dichotomy of Fermi liquid properties in Sr 2 RuO 4 revealed by Raman spectroscopy. Physical Review B, 2021, 103 (23), pp.235147. ⟨10.1103/PhysRevB.103.235147⟩. ⟨hal-03774704⟩
34 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More