Optical investigation on the electronic structures of Y_{2}Ru_{2}O_{7}, CaRuO_{3}, SrRuO_{3}, and Bi_{2}Ru_{2}O_{7}

Abstract

We investigated the electronic structures of the bandwidth-controlled ruthenates, Y${}_2$Ru${}_2$O${}_7$, CaRuO${}_3$, SrRuO${}_3$, and Bi${}_2$RuO${}_7$, by optical conductivity analysis in a wide energy region of 5 meV $\sim$ 12 eV. We could assign optical transitions from the systematic changes of the spectra and by comparison with the O 1$s$ x-ray absorption data. We estimated some physical parameters, such as the on-site Coulomb repulsion energy and the crystal-field splitting energy. These parameters show that the 4$d$ orbitals should be more extended than 3$d$ ones. These results are also discussed in terms of the Mott-Hubbard model.

12 pages (1 table), 3 figures

Cited by in corpus (27)

• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Strong electronic correlations from Hund's coupling
• Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5$d$ Transition Metal Oxides Sr${}_{n+1}$Ir${}_n$O${}_{3n+1}$ ($n$=1, 2, and $\infty$)
• Polarization Relaxation Induced by Depolarization Field in Ultrathin Ferroelectric BaTiO${}_3$ Capacitors
• Systematic trends in the electronic structure parameters of 4d transition metal oxides SrMO_{3} (M = Zr, Mo, Ru, and Rh)
• Competing Exotic Topological Insulator Phases in Transition Metal Oxides on the Pyrochlore Lattice with Distortion
• Quasiparticle Mass Enhancement and Temperature Dependence of the Electronic Structure of Ferromagnetic SrRuO3 Thin Films
• Non-Fermi liquid behavior and scaling of low frequency suppression in optical conductivity spectra of CaRuO${}_3$
• Electronic structures of layered perovskite Sr2MO4 (M=Ru, Rh, and Ir)
• Enhanced electrocatalytic activity via phase transitions in strongly correlated SrRuO3 thin films
• Electronic structures of hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films
• Electron and orbital correlations in Ca_{2-x}Sr_{x}RuO_{4} probed by optical spectroscopy
• Tuning electromagnetic properties of SrRuO3 epitaxial thin films via atomic control of cation vacancies
• Temperature Evolution of Itinerant Ferromagnetism in SrRuO3 Probed by Optical Spectroscopy
• Coupling charge and topological reconstructions at polar oxide interfaces
• Topological Insulators and Quantum Spin Liquids
• Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
• Electronic structure, cohesive properties and magnetism of SrRuO${}_3$; a theoretical investigation
• Investigation of the ferromagnetic transition in the correlated 4d perovskites SrRu${}_{1-x}$Rh${}_x$O${}_3$
• Enhanced metallic properties of SrRuO3 thin films via kinetically controlled pulsed laser epitaxy
• Optical investigations on $Y_{2-x}B{i}_{x}R{u}_2{O}_7$: Electronic structure evolutions related to the metal-insulator transition
• Antiferromagnetic vs ferromagnetic interactions and spin-glass-like behavior in ruthenates
• Long-range and local crystal structures of the Sr1-xCaxRuO3 Perovskites
• Epitaxial stabilization of metastable 3C BaRuO3 thin film with ferromagnetic non-Fermi liquid phase
• Tuning orbital-selective phase transitions in a two-dimensional Hund's correlated system
• Optical properties of pyrochlore oxide $P{b}_{2}R{u}_2{O}_{7-\delta }$
• Optical conductivity of the metallic pyrochlore iridate Pr${}_2$Ir${}_2$O${}_7$: Influence of spin-orbit coupling and electronic correlations on the electronic structure