%0 Journal Article
%T An investigation of phase separation by magnetic force microscopy in La0.45Sr0.55MnO3-δ(δ≈0.01)
%A 李润伟
%A 张臻蓉
%A 李庆安
%A 孙继荣
%A 王志宏
%A 张绍英
%A 成昭华
%A 韩宝善
%A 沈保根
%J 中国物理 B
%D 2002
%I 
%X We have found phase separation in La0.45Sr0.55MnO3-δ (LSMO) by means of electron spin resonance, magnetic force microscopy (MFM) and magnetic measurements. Ferromagnetic and antiferromagnetic phases can coexist at low temperatures, and ferromagnetic and paramagnetic phases coexist when the temperature lies between the Néel and Curie temperatures. The size and shape of the ferromagnetic phases (the minority phases) was first observed directly from MFM images. It is suggested that the phase separation in LSMO is not the charge segregation type, but an electroneutral type due perhaps to the nonuniform distribution of oxygen vacancies.
%K 晶体
%K LSMO
%K 相分离
%K 铁磁簇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=4F3B84F6BC5703429D363072EA2F361D&yid=C3ACC247184A22C1&vid=708DD6B15D2464E8&iid=38B194292C032A66&sid=334C61CAF4C8EF4E&eid=8BB50A069C48D50B&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0