First-Principles Correlated Approach to the Normal State of Strontium Ruthenate.

Acharya, S; Laad, M S; Dey, Dibyendu; Maitra, T; Taraphder, A

Acharya, S; Laad, M S; Dey, Dibyendu; Maitra, T; Taraphder, A.

Afiliación

Acharya S; Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.
Laad MS; Physics department, Kings College London, WC2R 2LS, UK.
Dey D; Institute of Mathematical Sciences, Taramani, Chennai 600113, India.
Maitra T; Max-Planck Inst. fuer Physik Komplexer Systeme, 38 Noethnitzer Strasse, 01187 Dresden, Germany.
Taraphder A; Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.

Sci Rep ; 7: 43033, 2017 02 21.

Article en En | MEDLINE | ID: mdl-28220879

RESUMEN

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.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2017 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido

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