期刊
SOLID STATE COMMUNICATIONS
卷 149, 期 39-40, 页码 1654-1657出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2009.06.044
关键词
Magnesium oxides; Titania; Intrinsic defects; First-principles
资金
- Spanish MEC [MAT 2006-13572-C02-01]
- E.C. project SOLFACE
- Juan de la Cierva & Ramon y Cajal programs
We study the impact of vacancies on the magnetism of MgO and TiO2 nanoparticles, and develop fist-principle calculations to ascertain the origin of the induced polarization. Theoretically, we expect ferromagnetism only for the case of MgO with cation defects. Experimentally, we observed a small magnetic signal probably due to imperfections in the lattice order, perhaps at the nanoparticles surface. (C) 2009 Elsevier Ltd. All rights reserved.
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