%0 Journal Article
%T Spin-glass-like behaviour and positive magnetoresistance in oxygen deficient La2/3Ca1/3MnO3-δ thin films
%A 张福昌
%A 陈卫然
%A 龚伟志
%A 许波
%A 邱祥冈
%A 赵柏儒
%J 中国物理 B
%D 2004
%I 
%X The magnetism and magnetoresistance (MR) in a series of oxygen-deficient La_{2/3}Ca_{1/3}MnO_{3-δ} (LCMO) thin films have been investigated. Compared with the films with stoichiometric oxygen concentration, the oxygen-deficient LCMO thin films show a spin-glass-like behaviour at low temperatures, and a positive MR effect above the metal－insulator transition temperature. The mechanism of such unusual phenomena is discussed.
%K 自旋玻璃
%K 磁致电阻
%K 氧缺陷
%K LCMO薄膜
%K 转换温度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=9251D26183A1FCB1DE428038105DEB29&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=94C357A881DFC066&sid=839A12D3ACF8C715&eid=E339BF74025BB291&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=23