2009/12/01 by O. B. Korneta, Shalinee Chikara, S. Chikara +6 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Condensed matter physics #Doping #Hydrostatic equilibrium #Hydrostatic pressure #Magnetic and transport properties of perovskites and related materials #Materials science #Mathematics #Multiferroics and related materials #Physics #Quantum mechanics #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.81.045101
arxiv created 2009/12/01 · openalex publication_date 2010/01/05 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
BaIrO3 is an unusual insulator with coexistent weak ferromagnetism, charge- and spin-density waves. Dilute rare-earth doping (e.g., \ensuremath∼4%) for Ba induces a metallic state whereas application of modest pressure (\ensuremath≤12.1 kbar) readily restores an insulating state characterized by a three order of magnitude increase in resistivity. Since pressure generally increases orbital overlap and broadens energy bands, a pressure-induced insulating state is not commonplace. The profoundly dissimilar responses of the ground state to light doping and low hydrostatic pressures signal an unusual, delicate interplay between structural and electronic degrees of freedom in BaIrO3.