A Dynamical Mean-field Study of LaNiO₃

2014/01/28 by Debolina Misra, Misra, Debolina
Earth and Planetary Sciences · Materials Science · Physics and Astronomy · #FOS: Physical sciences #High-pressure geophysics and materials #Magnetic and transport properties of perovskites and related materials #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.1401.7133

openalex publication_date 2014/01/28 · arxiv created 2014/03/03 · arxiv updated 2014/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

While most of the rare-earth nickelates exhibit a temperature-driven sharp metal-insulator transition, LaNiO₃ is the only exception remaining metallic down to low temperatures. Using local density approximation as an input to dynamical mean-field calculation, metallic properties of bulk LaNiO₃ is studied. The DMFT calculations indicate that the system is a correlated Fermi liquid with an enhanced effective mass. The possibility of a pressure-driven metal-insulator transition in the system is also suggested, which can be verified experimentally.

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