Nonstoichiometry Driven Ferromagnetism in Double Perovskite La2Ni1–xMn1+xO6 Insulating Thin Films

Defect-mediated ferromagnetism in insulating Co-doped anatase TiO2 thin films

K. Griffin Roberts,1 M. Varela,2 S. Rashkeev,3,2,* S. T. Pantelides,3,2 S. J. Pennycook,2,3 and Kannan M. Krishnan1,† 1Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA 2Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3Department of Physics and Astronomy, Vanderbilt University, Nash...

Ferromagnetism in inhomogeneous Zn1−xCoxO thin films

We report on a systematic study of structural, optical, electrical, and magnetic properties of Zn1−xCoxO x=0.05–0.29 thin films codoped with Al 0.1% . Both codoped in which Co is cosputtered with other elements and -doped in which Co is doped digitally in the host matrix samples have been prepared and studied. Prior to doping of Co, growth conditions were optimized to produce ZnO:Al films with ...

Quantum-well-induced ferromagnetism in thin films

Ferromagnetism in nanocrystalline epitaxial Co:TiO2 thin films

Vacancies Job in Oxide Perovskite Thin Films

Point defects can affect considerably the structural, magnetic, and transport properties of perovskite-structure materials with chemical formula ABO3. Oxygen vacancies (VO), for example, enable ionic conductivity in perovskite-based solid solutions to be used for electrochemical applications such as solid oxide fuel and electrolysis cells [1]. Likewise, VO can distort significantly the equilibr...