A weakly correlated Fermi liquid state with a small Fermi surface in lightly doped Sr${}_3$Ir${}_2$O${}_7$

Abstract

We characterize the electron doping evolution of (Sr${}_{1-x}$La${}_x$)${}_3$Ir${}_2$O${}_7$ by means of angle-resolved photoemission. Concomitant with the metal insulator transition around $x\approx 0.05$ we find the emergence of coherent quasiparticle states forming a closed small Fermi surface of volume $3x/2$, where $x$ is the independently measured La concentration. The quasiparticle weight $Z$ remains large along the entire Fermi surface, consistent with the moderate renormalization of the low-energy dispersion. This indicates a conventional, weakly correlated Fermi liquid state with a momentum independent residue $Z\approx 0.5$ in lightly doped Sr${}_3$Ir${}_2$O$_7&.

arXiv comment5 pages, 4 figures

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Cited by in corpus (27)

• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Collapse of the Mott gap and emergence of a nodal liquid in lightly doped Sr${}_2$IrO${}_4$
• Square Lattice Iridates
• Slater to Mott crossover in the metal to insulator transition of Nd2Ir2O7
• Transfer of spectral weight across the gap of Sr2IrO4 induced by La doping
• A charge density wave-like instability in a doped spin-orbit-assisted weak Mott insulator
• First-order melting of a weak spin-orbit Mott insulator into a correlated metal
• Doping Evolution of Magnetic Order and Magnetic Excitations in (Sr${}_{1-x}$La${}_x$)${}_3$Ir${}_2$O${}_7$
• Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
• Structural, electronic, and magnetic properties of nearly-ideal $J_{\mathrm{eff}}$ $=$ 1/2 iridium halides
• Antiferromagnetic Excitonic Insulator State in Sr3Ir2O7
• Pressure dependence of the structure and electronic properties of Sr3Ir2O7
• Fermi Arcs vs. Fermi Pockets in Electron-doped Perovskite Iridates
• Tuning the electronic structure of Sr2IrO4 thin films by bulk electronic doping using molecular beam epitaxy
• Quasiparticles and charge transfer at the two surfaces of the honeycomb iridate Na${}_2$IrO${}_3$
• Symmetry-resolved two-magnon excitations in a strong spin-orbit-coupled bilayer antiferromagnet
• Fermi surface versus Fermi sea contributions to intrinsic anomalous and spin Hall effects of multiorbital metals in the presence of Coulomb interaction and spin-Coulomb drag
• Fermi arcs and pseudogap emerging from dimensional crossover at the Fermi surface in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Coherent and incoherent bands in La and Rh doped Sr3Ir2O7
• Electronic and optical properties of La-doped Sr${}_3$Ir${}_2$O${}_7$ epitaxial thin-films
• Polarized Raman spectroscopy study of metallic $(S{r}_{1-x}L{a}_x{)}_{3}I{r}_2{O}_7$: a consistent picture of disorder-interrupted unidirectional charge order
• Electron doping in ${\text{Sr}}_3{\text{Ir}}_2{\text{O}}_7$: collapse of band gap and magnetic order
• Carrier dynamics in doped bilayer iridates near magnetic quantum criticality
• Critical fluctuations in the spin-orbit Mott insulator Sr${}_3$Ir${}_2$O${}_7$
• Many-body effects on the resistivity of a multiorbital system beyond Landau's Fermi-liquid theory
• Evolution of the spectral lineshape at the magnetic transition in Sr2IrO4 and Sr3Ir2O7
• Putative magnetic quantum criticality in (Sr${}_{\text{1-x}}$La${}_{\text{x}}$)${}_{\text{3}}$Ir${}_{\text{2}}$O${}_{\text{7}}$