paper

Orbital-Selective Quasiparticle Depletion across the Density Wave Transition in Trilayer Nickelate LaNiO

arXiv:2505.05068 · doi:10.1103/1tp1-y73g

Abstract

We investigate the evolution of polarized electronic Raman response in trilayer nickelate LaNiO, uncovering a systematic reduction of the incoherent electron continuum across the density wave transition in the and representations. Analysis based on the Fermi surface band curvatures points to quasiparticle coherence in momentum positions with dominant orbital character. Our findings establish the symmetry channels and the active role of orbitals involved in the density wave formation, offering important insight into the electronic and magnetic correlations in the nickelate.

Revised version accepted in Phys. Rev. Lett. New Table, Supplemental figures, and additional descriptions have been included. (Main text) 13 pages, 4 figures, 1 table. (Supplemental materials) 11 pages, 7 figures

References in corpus (32)

Cited by in corpus (3)