Multi-orbital physics in Fermi liquids prone to magnetic order

Abstract

The interplay of spin-orbit-coupling and strong electronic correlations is studied for the single-layer and the bilayer compound of the strontium ruthenate Ruddlesden-Popper series by a combination of first-principles band-structure theory with mean-field rotationally invariant slave bosons. At equilibrium strongly renormalized (spin-orbit-split) quasiparticle bands are traced and a thorough description of the low-energy regime for the nearly ferromagnetic bilayer system in accordance with experimental data is presented. The metamagnetic response of Sr${}_3$Ru${}_2$O${}_7$ in finite magnetic field $H$ is verified and a detailed analysis of the underlying correlated electronic structure provided. Intriguing multi-orbital physics on both local and itinerant level, such as e.g. competing paramagnetic and diamagnetic contributions, is observed with important differences depending on the magnetic-field angle $\theta$ with the crystallographic c axis.

15 pages, 19 figures

References in corpus (39)

• Maximally-localized generalized Wannier functions for composite energy bands
• Maximally-localized Wannier functions for entangled energy bands
• Nematic Fermi Fluids in Condensed Matter Physics
• Formation of a Nematic Fluid at High Fields in Sr3Ru2O7
• Metamagnetism and critical fluctuations in high quality single crystals of the bilayer ruthenate Sr3Ru2O7
• The coherence-incoherence crossover and the mass-renormalization puzzles in Sr2RuO4
• Fermi Surface, Surface States, and Surface Reconstruction in Sr2RuO4
• Evidence for incommensurate spin fluctuations in Sr_2RuO_4
• The ground state of Sr3Ru2O7 revisited; Fermi liquid close to a ferromagnetic instability
• Strong spin-orbit coupling effects on the Fermi surface of Sr2RuO4 and Sr2RhO4
• Competitions in layered ruthenates: ferro- vs. antiferromagnetism and triplet vs. singlet pairing
• Rotationally-invariant slave-boson formalism and momentum dependence of the quasiparticle weight
• Destruction of the Mott Insulating Ground State of Ca_2RuO_4 by a Structural Transition
• Nature of the Mott transition in Ca2RuO4
• Photoemission Quasi-Particle Spectra of Sr${}_2$RuO${}_4$
• Angular dependence of the magnetic susceptibility in the itinerant metamagnet Sr3Ru2O7
• Microscopic theory of the nematic phase in Sr${}_3$Ru${}_2$O${}_7$
• Fermi surface and van Hove singularities in the itinerant metamagnet Sr3Ru2O7
• Electronic Structure and Fermiology of Sr${}_3$Ru${}_2$O${}_7$
• Itinerant metamagnetism induced by electronic nematic order
• Quantum oscillations near the metamagnetic transition in Sr3Ru2O7
• Metamagnetism of itinerant electrons in multi-layer ruthenates
• Sr3Ru2O7: Thermodynamics of Phase Formation in a Quantum Critical Metal
• Evidence for strong electronic correlations in the spectra of Sr${}_2$RuO${}_4$
• Metamagnetic quantum criticality in Sr3Ru2O7 studied by thermal expansion
• Unconventional metamagnetic electron states in orbital band systems
• Heavy d-Electron Quasiparticle Interference and Real-space Electronic Structure of Sr3Ru2O7
• Surface electronic structure of Sr2RuO4
• Microscopic Route to Nematicity in Sr3Ru2O7
• First-principles calculations of spin-orbit effects and NMR in Sr2RuO4
• Spin-triplet superconducting pairing due to local (Hund's rule, Dirac) exchange
• Meta-nematic transitions in a bilayer system: Application to the bilayer ruthenate
• Symmetry-breaking lattice distortion in Sr_3Ru_2O_7
• Quasiparticle Interference in the Unconventional Metamagnetic Compound Sr${}_3$Ru${}_2$O${}_7$
• Effect of a staggered spin-orbit coupling on the occurrence of a nematic phase in Sr${}_3$Ru${}_2$O${}_7$
• Electron-lattice coupling, orbital stability and the phase diagram of Ca${}_{2-x}$Sr${}_x$RuO${}_4$
• Unusual heavy-mass nearly ferromagnetic state with a surprisingly large Wilson ratio in the double layered ruthenates (Sr${}_{1-x}$Ca${}_x$)${}_3$Ru${}_2$O${}_7$
• LDA+Slave-Boson approach to the correlated electronic structure of the metamagnetic bilayer ruthenate Sr${}_3$Ru${}_2$O${}_7$
• Strong correlations enhanced by charge-ordering in highly doped cobaltates

Cited by in corpus (24)

• Pairing symmetry and dominant band in Sr2RuO4
• The Fermi surface of Sr2RuO4: spin-orbit and anisotropic Coulomb interaction effects
• Spiral magnetism in the single-band Hubbard model: the Hartree-Fock and slave-boson approaches
• A key role of correlation effects in the Lifshitz transition in Sr${}_2$RuO${}_4$
• Superconducting order of ${\mathrm{Sr}}_2{\mathrm{RuO}}_4$ from a three-dimensional microscopic model
• Imaginary-time matrix product state impurity solver in a real material calculation: Spin-orbit coupling in Sr${}_2$RuO${}_4$
• Sr${}_2$MoO${}_4$ and Sr${}_2$RuO${}_4$: Disentangling the Roles of Hund's and van Hove Physics
• Formation and consequences of heavy d-electron quasiparticles in Sr3Ru2O7
• Multi-orbital nature of the spin fluctuations in Sr${}_2$RuO${}_4$
• Rigorous symmetry adaptation of multiorbital rotationally invariant slave-boson theory with application to Hund's rules physics
• Spin-orbit coupling and correlations in three-orbital systems
• BaOsO${}_3$: A Hund's metal in the presence of strong spin-orbit coupling
• Half-metallic ferromagnetism in Sr${}_3$Ru${}_2$O${}_7$
• Spin-orbit and anisotropic strain effects on the electronic correlations of Sr${}_2$RuO${}_4$
• State-of-the-art techniques for calculating spectral functions in models for correlated materials
• Point defects at cleaved Sr${}_{n+1}$Ru${}_n$O${}_{3n+1}$(001) surfaces
• Higher angular momentum pairing states in Sr${}_2$RuO${}_4$ in the presence of longer-range interactions
• Magnetic and transport signatures of Rashba spin-orbit coupling on the ferromagnetic Kondo lattice model in two dimensions
• Competing magnetic orders in quantum critical Sr${}_3$Ru${}_2$O${}_7$
• Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition
• Charge transfer model for the electronic structure of layered ruthenates
• Negatively enhanced thermopower near a Van Hove singularity in electron-doped Sr${}_2$RuO${}_4$
• Comparing the effective enhancement of local and non-local spin-orbit couplings on honeycomb lattices due to strong electronic correlations
• Strong effects of thermally induced low-spin-to-high-spin crossover on transport properties of correlated metals