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 Sr2RuO4 and 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.
@article{arxiv.1608.02914,
title = {First-Principles Correlated Approach to the Normal State of Strontium Ruthenate},
author = {Swagata Acharya and M. S. Laad and Dibyendu Dey and T. Maitra and A. Taraphder},
journal= {arXiv preprint arXiv:1608.02914},
year = {2017}
}