%0 Journal Article
%T The effect of grain boundaries on magnetic and transport properties in colossal magnetoresistance particle film<br>晶界对庞磁电阻颗粒薄膜的磁学和输运性能的影响
%A Li Pei-Gang
%A Lei Ming
%A Tang Wei-Hua
%A Song Peng-Yun
%A Chen Chin-Ping
%A Li Ling-Hong
%A <br>李培刚
%A 雷鸣
%A 唐为华
%A 宋朋云
%A 陈晋平
%A 李玲红
%J 物理学报
%D 2006
%I 
%X La0.67Ca0.33MnO3 grain films have been grown by pulsed electron beam deposition technology,and their magnetic and electronic transport properties investigated in detail.The influence of grain boundaries on the physical properties of La0.67Ca0.33MnO3 grain films were studied.Grain boundaries weaken the coupling between grains,resulting in a cluster spin glass state.The metal-insulator transition temperature (Tp) was shifted far below the ferromagnetic-paramagnetic transition temperature (Tc).At low temperatures,the electron transportation indicates a weak localization behavior,and under low magnetic fields,the intrinsic magnetoresisance effect is screened by the influence of grain boundaries.
%K pulsed electron beam deposition
%K grain boundaries
%K magnetic and transport properties
%K colossal magnetoresistance<br>脉冲电子束沉积
%K 晶界
%K 磁学和电学输运性能
%K 庞磁电阻
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=39973D39379554C1&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=94C357A881DFC066&sid=B74F270320BE8FD5&eid=B3200853CBF57502&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=18