Quasiparticle-like peaks, kinks, and electron-phonon coupling at the ($\pi$,0) regions in the CMR oxide La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$

Abstract

Using Angle-Resolved Photoemission (ARPES), we present the first observation of sharp quasiparticle-like peaks in a CMR manganite. We focus on the ($\pi$,0) regions of k-space and study their electronic scattering rates and dispersion kinks, uncovering the critical energy scales, momentum scales, and strengths of the interactions that renormalize the electrons. To identify these bosons we measured phonon dispersions in the energy range of the kink by inelastic neutron scattering (INS), finding a good match in both energy and momentum to the oxygen bond-stretching phonons.

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Cited by in corpus (32)

• Electrodynamics of Correlated Electron Materials
• Electronic structure of quantum materials studied by angle-resolved photoemission spectroscopy
• Kinks in the dispersion of strongly correlated electrons
• Generalized dynamical mean-field theory in physics of strongly correlated systems
• A local metallic state in globally insulating $L{a}_{1.24}S{r}_{1.76}M{n}_2{O}_7$ well above the metal-insulator transition
• Measurement of Coherent Polarons in the Strongly Coupled Antiferromagnetically Ordered Iron-Chalcogenide Fe1.02Te using Angle-Resolved Photoemission Spectroscopy
• Observation of anomalous temperature dependence of spectrum on small Fermi surfaces in a BiS2-based superconductor
• Bilayer manganites: polarons in the midst of a metallic breakdown
• Magnons in Ferromagnetic Metallic Manganites
• Gradual Disappearance of the Fermi Surface near the Metal-Insulator Transition in La${}_{1-x}$Sr${}_x$MnO${}_3$
• Spectroscopic signature of the $\mathbf{k}$-dependent electron-phonon coupling in $2H$-TaS${}_2$
• Electron-lattice coupling and partial nesting as the origin of Fermi-Arcs in manganites
• Empirical relationship between x-ray photoemission spectra and electrical conductivity in a colossal magnetoresistive manganite La_{1-x}Sr_{x}MnO_{3}
• Orbital mixing and nesting in the bilayer manganites La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$
• Non-gapped Fermi surfaces, quasiparticles and the anomalous temperature dependence of the near-$E_F$ electronic states in the CMR oxide La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$ with $x=0.36$
• Isotropic Kink and Quasiparticle Excitations in the Three-Dimensional Perovskite Manganite La${}_{0.6}$Sr${}_{0.4}$MnO${}_3$
• Origin of the kink in the band dispersion of the ferromagnetic perovskite SrRuO3: Electron-phonon coupling
• Colossal band renormalization and stoner ferromagnetism induced by electron-antiferromagnetic-magnon coupling
• Electron-plasmon interaction induced plasmonic-polaron band replication in epitaxial perovskite SrIrO${}_3$ films
• Low temperature dynamic polaron liquid in a manganite exhibiting colossal magnetoresistance
• A high resolution, hard x-ray photoemission investigation of La_(2-2x)Sr_(1+2x)Mn_2O_7 (0.30<x<0.50): on microscopic phase separation and the surface electronic structure of a bilayered CMR manganite
• Characteristic Energy of the Coulomb Interactions and the Pileup of States
• Incoherent mid-infrared charge excitation and the high energy anomaly in the photoemission spectra of cuprates
• Fermi surface and kink structures in Sr${}_4$Ru${}_3$O${}_{10}$ revealed by synchrotron-based ARPES
• A Minimal tight-binding model for ferromagnetic canted bilayer manganites
• Bilayer splitting and c-axis coupling in bilayer manganites showing colossal magnetoresistance
• The electronic structure of La${}_{1-x}$Sr${}_x$MnO${}_3$ thin films and its $T_c$ dependence as studied by angle-resolved photoemission
• Observation of electronic inhomogeneity and charge density wave in a bilayer La${}_{1.36}$Sr${}_{1.64}$Mn${}_2$O${}_7$ single crystal
• Spectroscopic fingerprints of many-body renormalizations in$1T$-TiSe${}_2$
• Cooling a polaronic liquid: Phase mixture and pseudogap-like spectra in superconducting $B{a}_{1-x}{K}_{x}Bi{O}_3$
• On the origin of CE-type orbital fluctuations in the ferromagnetic metallic La${}_{1.2}$Sr${}_{1.8}$Mn${}_2$O${}_7$
• Dynamics of bi-stripes and a colossal metal-insulator transition in the bi-layer manganite La${}_{2-2x}$Sr${}_{1+2x}$Mn${}_2$O${}_7$ (x~0.59)