典型文献
Substrate Effect on the Structural and Electrical Properties of LaNiO3 Thin Films
文献摘要:
Epitaxial LaNiO3 (LNO) thin films prepared from the sols modified with polyethyleneimine (PEI) were grown on single-crystal LaAlO3, (LaAlO3)0.3(SrAlTaO6)0.7, and SrTiO3 substrates, respectively, using a simple polymer assisted deposition (PAD). The epitaxial structure, surface morphologies and transport of the LNO films were studied by X-ray diffraction (θ/2θ symmetric scan, ω-scan, and in-plane φ-scan), the field emission scanning electron microscopy, and a standard dc four-probe method. It is found that, compared with that of LNO bulk, the c-axis parameter of the LNO film increases under compressive strain and decreases under tensile strain. All the LNO films exhibit metal properties in the temperature-dependent resistivity. The resistivity of the LNO films shows an increasing trend with the lattice mismatch strain changing from compressive to tensile. It is suggested that the oxygen vacancy compensated by more Ni2+ changed from Ni3+ in the film increases with the strain changing from compressive to tensile, which results in the increase of the resistivity.
文献关键词:
中图分类号:
作者姓名:
YAO Dan;WANG Weiwei;YU Jiangying;YOU Yuwei
作者机构:
Key Laboratory of Advanced Electronic Materials and Devices,School of Mathematics&Physics,Anhui Jianzhu University,Hefei 230601,China;Department of Materials,Hefei Guoxuan High-Tech Power Energy Co.,Ltd,Hefei 230011,China
文献出处:
引用格式:
[1]YAO Dan;WANG Weiwei;YU Jiangying;YOU Yuwei-.Substrate Effect on the Structural and Electrical Properties of LaNiO3 Thin Films)[J].武汉理工大学学报(材料科学版)(英文版),2022(04):559-563
A类:
SrAlTaO6
B类:
Substrate,Effect,Structural,Electrical,Properties,LaNiO3,Thin,Films,Epitaxial,LNO,thin,films,prepared,from,sols,modified,polyethyleneimine,PEI,were,grown,single,crystal,LaAlO3,SrTiO3,substrates,respectively,using,simple,polymer,assisted,deposition,PAD,epitaxial,structure,surface,morphologies,transport,studied,by,ray,diffraction,symmetric,plane,field,emission,scanning,electron,microscopy,standard,dc,four,probe,method,It,found,that,compared,bulk,axis,parameter,increases,under,compressive,strain,decreases,tensile,All,exhibit,metal,properties,temperature,dependent,resistivity,shows,increasing,trend,lattice,mismatch,changing,suggested,oxygen,vacancy,compensated,more,Ni2+,changed,Ni3+,which,results
AB值:
0.593696
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