Evidence of electron correlation and weak bulk plasmon in SrMoO${}_3$

Abstract

We investigate the electronic structure of highly conducting perovskite SrMoO${}_3$ using valence band photoemission spectroscopy and electronic structure calculations. Large intensity corresponding to coherent feature close to Fermi level is captured by density functional theory (DFT) calculation. An additional satellite at $\sim$ 3 eV binding energy remains absent in DFT, hybrid functional (DFT-hybrid) and dynamical mean field theory (DFT + DMFT) calculations. Mo 4$d$ spectra obtained with different surface sensitive photoemission spectroscopy suggest different surface and bulk electronic structures. DFT + DMFT spectral function is in excellent agreement with the coherent feature in the bulk Mo 4$d$ spectra, revealing moderate electron correlation strength. A large plasmon satellite and signature of strong electron correlation are observed in the surface spectra, while the bulk spectra exhibits a $weak$ plasmon satellite.

References in corpus (13)

• Quantum Monte Carlo Impurity Solver for Cluster DMFT and Electronic Structure Calculations in Adjustable Base
• Strong spin-orbit coupling effects on the Fermi surface of Sr2RuO4 and Sr2RhO4
• Implementation of screened hybrid functionals based on the Yukawa potential within the LAPW basis set
• Multitier self-consistent $GW$+EDMFT
• Ab Initio Full Cell GW+DMFT for Correlated Materials
• Sr${}_2$MoO${}_4$ and Sr${}_2$RuO${}_4$: Disentangling the Roles of Hund's and van Hove Physics
• Screening from $e_g$ states and antiferromagnetic correlations in $d^{(1,2,3)}$ perovskites: A $GW$+EDMFT investigation
• Correlation-Induced Octahedral Rotations in SrMoO${}_3$
• Electronic structure of the highly conductive perovskite oxide SrMoO${}_3$
• Role of disorder and strong 5$d$ electron correlation in the electronic structure of Sr2TiIrO6
• First-principles study of the electronic, magnetic, and crystal structure of perovskite molybdates
• Electronic structure of ternary palladates and effect of hole doping: A valence band photoemission spectroscopic study
• Revelation of Mott insulating state in layered honeycomb lattice Li${}_2$RuO${}_3$

Cited by in corpus (1)

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