Ferroelectric polarization, domains structures and magnetic property of Y_(1-x)In_xMnO_3  

作　　者：Li Wang Fu-Kuo Chiang Jun Li Chao Ma Huai-Xin Yang Jian-Qi Li 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics, Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》2014年第36期5194-5198,共5页

基　　金：supported by the National Basic Research Program of China(2011CB921703,2011CBA00101,2010CB923002,2012CB821404);the National Natural Science Foundation of China(51272277,91221102,11190022,11274368);the Strategic Priority Research Program of the Chinese Academyof Sciences(XDB07020000)

摘　　要：The vortex domains, structural properties and ferroelectric polarization in Y1-xInxMn O3 with 0 B x B 0.6have been extensively investigated in well-characterized samples. X-ray diffraction measurements demonstrated that the lattice parameters change continuously following the substitution of In for Y. Measurements of magnetic susceptibilities revealed that In substitution could visibly affect the magnetic transition and low-temperature magnetic properties. Transmission electron microscopy study showed that In substitution could result in notable decrease of the size of ferroelectric vortex domains. Cs-corrected scanning transmission electron microscopy observations and our careful analysis on atomic-poling configurations demonstrate that the ferroelectric polarizations of Y1-xInxMn O3 are suppressed with the increase of In content.The vortex domains, structural properties and ferroelectric polarization in Y1-xInxMn O3 with 0 B x B 0.6have been extensively investigated in well-characterized samples. X-ray diffraction measurements demonstrated that the lattice parameters change continuously following the substitution of In for Y. Measurements of magnetic susceptibilities revealed that In substitution could visibly affect the magnetic transition and low-temperature magnetic properties. Transmission electron microscopy study showed that In substitution could result in notable decrease of the size of ferroelectric vortex domains. Cs-corrected scanning transmission electron microscopy observations and our careful analysis on atomic-poling configurations demonstrate that the ferroelectric polarizations of Y1-xInxMn O3 are suppressed with the increase of In content.

关 键 词：结构性能 铁电极 磁性 透射电子显微镜 电子显微镜观察 X射线衍射 晶格参数 磁化率 

分 类 号：O646.54[理学—物理化学]