title: First-Principles Correlated Approach to the Normal State of Strontium Ruthenate.
abstract: The interplay between multiple bands, sizable multi-band electronic correlations and strong spin-orbit coupling may conspire in selecting a rather unusual unconventional pairing symmetry in layered Sr2RuO4. This mandates a detailed revisit of the normal state and, in particular, the T-dependent incoherence-coherence crossover. Using a modern first-principles correlated view, we study this issue in the actual structure of Sr2RuO4and present a unified and quantitative description of a range of unusual physical responses in the normal state. Armed with these, we propose that a new and important element, that of dominant multi-orbital charge fluctuations in a Hund's metal, may be a primary pair glue for unconventional superconductivity. Thereby we establish a connection between the normal state responses and superconductivity in this system.
authors.affiliation: Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.|Physics department, Kings College London, WC2R 2LS, UK.
authors.forename: S
authors.initials: S
authors.lastname: Acharya
authors.affiliation: Institute of Mathematical Sciences, Taramani, Chennai 600113, India.|Max-Planck Inst. fuer Physik Komplexer Systeme, 38 Noethnitzer Strasse, 01187 Dresden, Germany.
authors.forename: M S
authors.initials: MS
authors.lastname: Laad
authors.affiliation: Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.
authors.forename: Dibyendu
authors.initials: D
authors.lastname: Dey
authors.affiliation: Department of Physics, Indian Institute of Technology, Roorkee, Roorkee 247667, India.
authors.forename: T
authors.initials: T
authors.lastname: Maitra
authors.affiliation: Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.|Centre for Theoretical Studies, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
authors.forename: A
authors.initials: A
authors.lastname: Taraphder