材料科学
双层
锰铁矿
薄膜
微晶
铁电性
外延
图层(电子)
旋涂
基质(水族馆)
复合材料
化学工程
铁磁性
纳米技术
光电子学
冶金
凝聚态物理
膜
电介质
工程类
地质学
物理
海洋学
生物
遗传学
作者
Danica Piper,Jelena Vukmirovic,Iva Tokovic,Ákos Kukovecz,Imre Szenti,M. Novaković,Marija Milanović,Vladimir V. Srdić
摘要
In this work bilayer structures, composed of ferromagnetic manganite and ferroelectric titanate layers, were obtained by solution deposition technique. The first step in preparation of the bilayer thin films was deposition of manganite (LaMnO3 or La0.7Sr0.3MnO3) layer by water-based polymer assisted deposition (PAD). Polycrystalline structures were obtained when manganite films were deposited by spin coating on commercial Pt/TiO2/SiO2/Si type substrate, whereas epitaxial films were grown on a single crystal SrTiO3 with (001) orientation substrate. The second ferroelectric titanate (BaTiO3 or Ba0.7Sr0.3TiO3) layer was deposited by spin coating using sol-gel method. The obtained bilayer structures have thickness below 100 nm, and epitaxial growth of the Ba0.7Sr0.3TiO3 film on the La0.7Sr0.3MnO3 surface was obtained, due to the similar lattice parameters between these two crystal structures.
科研通智能强力驱动
Strongly Powered by AbleSci AI