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Title: Electronic transitions in strained SmNiO{sub 3} thin films

Nickelates are known for their metal to insulator transition (MIT) and an unusual magnetic ordering, occurring at T = T{sub Néel}. Here, we investigate thin films of SmNiO{sub 3} subjected to different levels of epitaxial strain. We find that the original bulk behavior (T{sub Néel} < T{sub MI}) is strongly affected by applying compressive strain to the films. For small compressive strains, a regime where T{sub Néel} = T{sub MI} 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 SmNiO{sub 3} lattice leads to the stabilization of a single metallic paramagnetic phase.
Authors:
; ; ; ; ;  [1] ; ;  [2] ; ;  [3] ;  [1] ;  [4] ;  [1] ;  [5] ;  [6]
  1. Department de Physique de la Matière Condensée, Université de Genève, Genève 1211 (Switzerland)
  2. Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen (Switzerland)
  3. Canadian Light Source, Saskatoon, Saskatchewan S7N 2V3 (Canada)
  4. (CNRS URA 2464), CEA Saclay, 91191 Gif-sur-Yvette (France)
  5. (CPHT), École Polytechnique, Palaiseau, Cedex 91128 (France)
  6. Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)
Publication Date:
OSTI Identifier:
22415224
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL materials; Journal Volume: 2; Journal Issue: 11; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPRESSION; CRYSTAL LATTICES; EPITAXY; MAGNETIZATION; NEEL TEMPERATURE; NICKELATES; PARAMAGNETISM; PHASE STABILITY; SAMARIUM COMPOUNDS; STABILIZATION; STRAINS; THIN FILMS