淮阴师范学院学报（自然科学版）
淮陰師範學院學報（自然科學版）
회음사범학원학보（자연과학판）
JOURNAL OF HUAIYIN TEACHERS COLLEGE (NATURAL SCIENCE EDITION)
2014年
2期
117-120
,共4页
La0.8 Ca0.2 MnO3 薄膜%应力%电运输性质
La0.8 Ca0.2 MnO3 薄膜%應力%電運輸性質
La0.8 Ca0.2 MnO3 박막%응력%전운수성질
La0.8 Ca0.2 MnO3 thin films%stress%electoral transport properties
采用脉冲激光沉积技术，在LaAlO3和0.67Pb（Mg1/3Nb2/3）O3-0.33PbTiO3两种单晶基片上外延生长了La0.8 Ca0.2 MnO3薄膜．X射线衍射分析表明两种薄膜皆为单取向生长，且面内分别受到压应力和张应力作用．晶格失配造成的应力对薄膜的电阻和金属-绝缘相转变温度Tp影响很大．对LCMO/PMN-PT施加外电场，从而调节薄膜所受应力也可以调制其电阻和T p ．
採用脈遲激光沉積技術，在LaAlO3和0.67Pb（Mg1/3Nb2/3）O3-0.33PbTiO3兩種單晶基片上外延生長瞭La0.8 Ca0.2 MnO3薄膜．X射線衍射分析錶明兩種薄膜皆為單取嚮生長，且麵內分彆受到壓應力和張應力作用．晶格失配造成的應力對薄膜的電阻和金屬-絕緣相轉變溫度Tp影響很大．對LCMO/PMN-PT施加外電場，從而調節薄膜所受應力也可以調製其電阻和T p ．
채용맥충격광침적기술，재LaAlO3화0.67Pb（Mg1/3Nb2/3）O3-0.33PbTiO3량충단정기편상외연생장료La0.8 Ca0.2 MnO3박막．X사선연사분석표명량충박막개위단취향생장，차면내분별수도압응력화장응력작용．정격실배조성적응력대박막적전조화금속-절연상전변온도Tp영향흔대．대LCMO/PMN-PT시가외전장，종이조절박막소수응력야가이조제기전조화T p ．
La0.8 Ca0.2 MnO3 thin films were epitaxially grown on LaAlO3 and 0.67Pb (Mg1/3 Nb2/3) O3-0.33 PbTiO3 crystal substrates by pulsed laser deposition technique .X ray diffraction analysis showed that the two kinds of films were single orientation grown , and the two films were under compressive and tensile stress respectively .Stress induced by lattice mismatch played great role on the resistance and metal-insulator phase transition temperature Tp of the films.Applying external electric field on LCMO/PMN-PT, thereby regulating the film stress, can also modulate the resistance and Tp .
