2009/02/09 by M. P. Singh, K. D. Truong, P. Fournier +8
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Chemistry #Condensed matter physics #Coupling (piping) #Curie temperature #Dielectric #Epitaxy #Ferroelectricity #Ferromagnetism #Layer (electronics) #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetization #Materials science #Multiferroics #Multiferroics and related materials #Nanotechnology #Optoelectronics #Oxide #Physical chemistry #Physics #Polarization (electrochemistry) #Pulsed laser deposition #Thin film #cond-mat.mtrl-sci
paper · pdf · doi:10.1016/j.jmmm.2009.02.003
12 pages, 5 figs
openalex publication_date 2009/02/09 · arxiv created 2009/04/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Double perovskites provide a unique opportunity to induce and control multiferroic behaviors in oxide systems. The appealing possibility to design materials with a strong coupling between the magnetization and the polarization fields may be achieved in this family since these magnetic insulators can present structural self-ordering in the appropriate growth conditions. We have studied the functional properties of La2CoMnO6 and Bi2CoMnO6 epitaxial thin films grown by pulsed laser deposition. Cation-ordered La2CoMnO6 films display a magnetic Curie temperature of 250 K while cation-disordered Bi2CoMnO6 films present ferromagnetism up to ~ 800 K. Such high transition temperature for magnetic ordering can be further tuned by varying the strain in the films indicating an important contribution from the structural characteristics of the materials. Our approach might be generalized for other oxide systems. At this end, our results are compared with other multiferroic systems. The roles of various cations, their arrangements and structural effects are further discussed.