2014/11/01 by Sara Catalano, S. Catalano, Marta Gibert +20 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Composite material #Condensed matter physics #Epitaxy #Lattice (music) #Magnetic and transport properties of perovskites and related materials #Materials science #Metal #Metallurgy #Metal–insulator transition #Multiferroics and related materials #Nanotechnology #Paramagnetism #Phase transition #Thin film #cond-mat.str-el
paper · pdf · doi:10.1063/1.4902138
published as APL Materials 2, 116110 (2014)
openalex publication_date 2014/11/01 · arxiv created 2015/04/20 · arxiv updated 2015/04/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Nickelates are known for their metal to insulator transition (MIT) and an unusual magnetic ordering, occurring at T = TNéel. Here, we investigate thin films of SmNiO3 subjected to different levels of epitaxial strain. We find that the original bulk behavior (TNéel < TMI) is strongly affected by applying compressive strain to the films. For small compressive strains, a regime where TNéel = TMI is achieved, the paramagnetic insulating phase characteristic of the bulk compound is suppressed and the MIT becomes 1st order. Further increasing the in-plane compression of the SmNiO3 lattice leads to the stabilization of a single metallic paramagnetic phase.