%0 Journal Article
%T Study on the size-dependent magnetic properties of multiferroic BiFeO3 nanoparticles<br>多铁性BiFeO3纳米颗粒的尺寸依赖磁性能研究
%A Wei Jie
%A Chen Yan-Jun
%A Xu Zhuo
%A <br>魏杰
%A 陈彦均
%A 徐卓
%J 物理学报
%D 2012
%I 
%X The pure phase BiFeO3 nanoparticles with different sizes are prepared by an ethylenediaminetetraacetic acid complexing sol-gel process. The structure, the morphology and the magnetic properties of BiFeO3 nanoparticles are characterized by X-ray diffractometry, scanning electron microscopy, superconducting quantum interference device magnetometer and Mossbauer spectra analysis. The results show that the BiFeO3 nanoparticle possesses an weak ferromagnetism at room temperature with a strongly size-dependent property. It reflects that the weak ferromagnetism present in the BiFeO3 nanoparticle should be attributed to the grain size-confinement effect, rather than the existence of the magnetic impurity or Fe2+.
%K BiFeO3
%K nanoparticles
%K magnetic properties
%K size-confinement effects<br>BiFeO3
%K 纳米颗粒
%K 磁性能
%K 尺寸限制效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9B2BCA8CA9CB30DF61BBD8C6D67014A7&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=94C357A881DFC066&sid=81860B9FE8A1B0DD&eid=81860B9FE8A1B0DD&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=25