Phase pure targets of sodium substituted lanthanum manganites (LNMO) were prepared by citrate gel method and characterized. These targets were laser ablated by pulsed laser deposition technique and were deposited simultaneously on silicon and relaxor ferroelectric PMN-PT substrates with a view to fabricating ferroelectric-ferromagnetic 2D heterostructures. Magnetization measurements reveal a higher magnetization for films of 100 nm thickness than the 300 nm thick films. The PMN-PT substrate influences the magnetic properties of sodium substituted lanthanum manganite thin films. The strain effects are higher for 100 nm thin films. The saturated polarization-electric field (P-E) loop measurements carried out on films demonstrated that, there is a considerable change in hysteresis parameters (coercivity and remanent polarization) upon thin film deposition. PMN-PT LNMO thin films can be viewed as a heterostructure where ferromagnetism and ferroelectricity co-exist and has potential applications in magnetoelectrics.

采用柠檬酸盐凝胶法制备钠取代锰酸镧（LNMO）的相纯靶材并对其进行表征。这些目标通过脉冲激光沉积技术进行激光烧蚀，并同时沉积在硅和弛豫铁电 PMN-PT 衬底上，以制造铁电-铁磁 2D 异质结构。磁化测量显示 100 nm 厚的薄膜比 300 nm 厚的薄膜具有更高的磁化强度。PMN-PT 衬底影响钠取代的锰酸镧薄膜的磁性能。100 nm 薄膜的应变效应更高。在薄膜上进行的饱和极化电场 (PE) 环路测量表明，在薄膜沉积过程中，磁滞参数（矫顽力和剩余极化）有相当大的变化。PMN-PT LNMO薄膜可以看作是铁磁性和铁电性共存的异质结构，在磁电学中具有潜在的应用。