Anisotropy of Magnetization and Nanocrystalline Texture in Electrodeposited CeO2 Films

作者：Fernandes V^*; Schio P; Mossanek R J O; de Oliveira A J A; Ortiz W A; Demaille D; Vidal F; Zheng Y; Fichtner P; Amaral L; Abbate M; Varalda J; Schreiner W H; Mosca D H

来源：Electrochemical and Solid-State Letters, 2011, 14(3): P9-P11.

DOI：10.1149/1.3532940

Magnetic properties of textured CeO2(111) thin films produced by electrodeposition on SiO2/Si(001) substrates exhibiting room-temperature ferromagnetism and a strong perpendicular anisotropy of the saturation magnetization are reported and discussed. Our results indicate that these effects are directly related to the texture and the presence of oxygen vacancies V-O. Magnetization and the anisotropy of magnetization increase for films with higher V-O concentration, which is correlated with the ordering of oxygen vacancy pairs V-O-V-O along the < 111 > crystallographic axes. Our findings are supported by supercell band structure calculations.

• 出版日期2011