Magnetic Properties of Self-Assembled Epitaxial Nanocomposite CoFe2O4:SrTiO3 and CoFe2O4:MgO Films

STACY M. BABER; QIANGLU LIN; GUIFU ZOU; NESTOR HABERKORN; SCOTT A. BAILY; HAIYAN WANG; ZHENXING BI; HAO YANG; SHUGUANG DENG; MARILYN E. HAWLEY; LEONARDO CIVALE; EVE BAUER; T. MARK MCCLESKEY; ANTHONY K. BURRELL; QUANXI JIA; HONGMEI LUO

JOURNAL OF PHYSICAL CHEMISTRY C

AMER CHEMICAL SOC

Año: 2011 vol. 115 p. 25338 - 25342

1932-7447

Self-assembled epitaxial nanocomposite CoFe2O4:SrTiO3 and CoFe2O4:MgO thin films were grown on LaAlO3 substrates by a chemical solution approach of polymer-assisted deposition. X-ray diffraction and transmission electron microscopy analyses indicated that both phases in the composites were epitaxial with respect to the major axes of the substrate. Compared to the single-phase ferrimagnetic spinel CoFe2O4 films and the bilayer CoFe2O4/SrTiO3 and CoFe2O4/MgO films, the composite films exhibited reduced coercivity and enhanced magnetic anisotropy.