典型文献
High-temperature ferromagnetic metallic phase in LaMnO3/Sr3Al2O6 heterostructure
文献摘要：
To achieve a flexible single-crystal multifunctional membrane,the freestanding process of a rigid epitaxial transition metal oxide thin film via a buffered water-dissolution sacrificial layer has attracted reasonable attentions.Owing to the difference in chemical potential,specific element affinity,and lattice constant between the target membrane and the sacrificial layer,the freestanding process may cause an indelible change of physics property once the target thin film is sensitive to the above factors.Here,the het-erostructures composed of the generally adopted sacrificial layer Sr3Al2O6(SAO)and LaMnO3(LMO)have been systematically investigated.The electrical and magnetic properties of LMO show extreme sensitiv-ity to the thickness of SAO(tSAO).Then we have also found that LMO/SAO heterostructures can exhibit the coexistence of two ferromagnetic phases,the significantly enhanced Curie temperature～342 K,and the large magnetoresistance-23.3％at 300 K,which is similar to the optimal-doped manganite such as La2/3Sr1/3MnO3.X-ray diffraction results show that continuously tunable strain from out-of-plane tension to relaxation and then to compression can be generated by adjusting tSAO.This strain can stabilize the migrated oxygen from LMO to SAO,which is induced by the large oxygen affinity difference between B-site Mn and Al.It is believed that these unexpected electrical/magnetic phenomena are originated from the combined effects of interfacial element diffusion and strain.Our study provides a strategy for de-signing new magnetic phases,and a reference for the fundamental understanding of strongly correlated transition metal oxide systems in the freestanding process.
文献关键词：
中图分类号：
作者姓名：
Di Wang;Bin He;Jinrui Guo;Qixiang Wang;Chaoqun Shi;Yue Han;Hong Fang;Jie Wang;Nana Zhang;Peng Zhang;Yanan Chen;Changwen Zhang;Weiming Lü;Shishen Yan
作者机构：
Spintronics Institute,School of Physics and Technology,University of Jinan,Jinan,250022,China;Condensed Matter Science and Technology Institute,School of Instrumentation Science and Engineering,Harbin Institute of Technology,Harbin,150080,China;School of Physics,Shandong University,Jinan,250100,China
文献出处：
引用格式：
[1]Di Wang;Bin He;Jinrui Guo;Qixiang Wang;Chaoqun Shi;Yue Han;Hong Fang;Jie Wang;Nana Zhang;Peng Zhang;Yanan Chen;Changwen Zhang;Weiming Lü;Shishen Yan-.High-temperature ferromagnetic metallic phase in LaMnO3/Sr3Al2O6 heterostructure)[J].材料科学技术（英文版）,2022(24):69-74
A类：
Sr3Al2O6,tSAO,3Sr1
B类：
High,temperature,ferromagnetic,metallic,LaMnO3,To,achieve,flexible,single,crystal,multifunctional,membrane,freestanding,process,rigid,epitaxial,transition,oxide,thin,film,via,buffered,water,dissolution,sacrificial,layer,attracted,reasonable,attentions,Owing,difference,chemical,potential,specific,element,affinity,lattice,constant,between,target,may,cause,indelible,change,physics,property,once,sensitive,above,factors,Here,composed,generally,adopted,LMO,have,been,systematically,investigated,electrical,properties,show,extreme,thickness,Then,also,found,that,heterostructures,exhibit,coexistence,two,phases,significantly,enhanced,Curie,large,magnetoresistance,which,similar,optimal,doped,manganite,such,La2,3MnO3,ray,diffraction,results,continuously,tunable,strain,from,out,plane,tension,relaxation,then,compression,generated,by,adjusting,This,stabilize,migrated,oxygen,induced,site,It,believed,these,unexpected,phenomena,are,originated,combined,effects,interfacial,diffusion,Our,study,provides,strategy,signing,new,reference,fundamental,understanding,strongly,correlated,systems
AB值：
0.566269
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