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Electronic doping of transition metal oxide perovskites

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4953041· OSTI ID:22590711
 [1];  [2]
  1. Department of Control Engineering, Czech Technical University in Prague, Technicka 2, 16627 Prague 6 (Czech Republic)
  2. Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (United States)

CaFeO{sub 3} is a prototypical negative charge transfer oxide that undergoes electronic metal-insulator transition concomitant with a dilation and contraction of nearly rigid octahedra. Altering the charge neutrality of the bulk system destroys the electronic transition, while the structure is significantly modified at high charge content. Using density functional theory simulations, we predict an alternative avenue to modulate the structure and the electronic transition in CaFeO{sub 3}. Charge distribution can be modulated using strain-rotation coupling and thin film engineering strategies, proposing themselves as a promising avenue for fine tuning electronic features in transition metal-oxide perovskites.

OSTI ID:
22590711
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 21 Vol. 108; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English