Multiferroic composite magnetoelectric film and preparation method thereof
A multiferroic and thin-film technology, applied in liquid chemical plating, metal material coating process, coating, etc., to achieve the effect of low preparation cost, stable performance and simple process
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Embodiment 1
[0039] A. Preparation of precursor solution
[0040] Weigh 0.0084mol of lanthanum nitrate, 0.0036mol of strontium acetate and 0.012mol of manganese chloride, add 40mL of glacial acetic acid, heat to reflux to dissolve the solute completely, and obtain a transparent yellow solution; let it stand for 2 days, filter through a 0.22μm microporous Membrane filtration can obtain stable lanthanum strontium manganese oxide (La 0.7 Sr 0.3 MnO 3 ) precursor solution;
[0041] B. Preparation of composite magnetoelectric thin film
[0042] Firstly, the (001) PMN-PT substrate was baked on a hot stage at 400°C for 30 minutes to reduce the stress on its surface. Using a homogenizer, drop the prepared LRMO precursor solution onto the cleaned (001) PMN-PT single crystal substrate rotating at a high speed at a constant speed. The speed of the substrate is first 400rpm for 10s, then 3000rpm for 40s , to obtain a layer of lanthanum strontium manganese oxide gel film; place it in a rapid annea...
Embodiment 2
[0044] A. Preparation of precursor solution
[0045] Weigh 0.006mol of lanthanum nitrate, 0.006mol of strontium acetate and 0.012mol of manganese chloride, add 30mL of glacial acetic acid, heat to reflux to dissolve the solute completely, and obtain a transparent yellow solution; let it stand for 2 days, filter through a 0.22μm microporous Membrane filtration can obtain stable lanthanum strontium manganese oxide (La 0.5 Sr 0.5 MnO 3 ) precursor solution;
[0046] B. Preparation of composite magnetoelectric thin film
[0047] First, the (001) PMN-PT substrate was baked on a hot stage at 400°C for 25 minutes to reduce the stress on its surface. Using a homogenizer, drop the prepared LRMO precursor solution onto the cleaned (001) PMN-PT single crystal substrate rotating at a high speed at a constant speed. The speed of the substrate is first 500rpm for 9s, then 3500rpm for 30s , to obtain a layer of lanthanum strontium manganese oxide gel film; placed in a rapid annealing fu...
Embodiment 3
[0049] A. Preparation of precursor solution
[0050] Weigh 0.0036mol of lanthanum nitrate, 0.0084mol of strontium acetate and 0.012mol of manganese chloride, add 30mL of glacial acetic acid, heat to reflux to dissolve the solute completely, and obtain a transparent yellow solution; let it stand for 2 days, filter it with a 0.22μm microporous Membrane filtration can obtain stable lanthanum strontium manganese oxide (La 0.3 Sr 0.7 MnO 3 ) precursor solution;
[0051] B. Preparation of composite magnetoelectric thin film
[0052] Firstly, the (001) PMN-PT substrate was baked on a hot stage at 400°C for 40 minutes to reduce the stress on its surface. Using a homogenizer, drop the prepared LRMO precursor solution onto the cleaned (001) PMN-PT single crystal substrate rotating at a high speed at a constant speed. The speed of the substrate is first 400rpm for 5s, then 3000rpm for 20s , to obtain a layer of lanthanum strontium manganese oxide gel film; place it in a rapid anneal...
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