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Method for preparing and transferring multilayer barium titanate and multilayer cobalt ferrite magnetoelectric composite film
The invention discloses a method for preparing and transferring a multilayer barium titanate and multilayer cobalt ferrite magnetoelectric composite film. The problems that the substrate clamping effect and electric leakage cannot be simultaneously reduced by the composite material of the conventional structures 1-3 are mainly solved. The method comprises the following implementation steps: depositing a magnesium oxide film on a sapphire substrate, and alternatively depositing a multilayer cobalt ferrite film and a multilayer barium titanate film on the substrate; spinning polymethyl methacrylate on the surface of the final barium titanate film, and removing a single crystal magnesium oxide film by using an ammonium sulfate solution, so that the magnetoelectric composite film attached to polymethyl methacrylate is separated from the sapphire substrate; and transferring the magnetoelectric composite film separated from the sapphire substrate onto a subsequent needed substrate, thereby obtaining a self-supported magnetoelectric film compounded by the multilayer cobalt ferrite film and the multilayer barium titanate film. The multilayer barium titanate and multilayer cobalt ferrite composite film disclosed by the invention is large in surface coupling property, the magnetic and electrical properties are enhanced, the substrate clamping and electric leakage problems are reduced, and the method can be used for preparing a magnetoelectric sensor.
Method for preparing and transferring multilayer barium titanate and multilayer cobalt ferrite magnetoelectric composite film
The invention discloses a method for preparing and transferring a multilayer barium titanate and multilayer cobalt ferrite magnetoelectric composite film. The problems that the substrate clamping effect and electric leakage cannot be simultaneously reduced by the composite material of the conventional structures 1-3 are mainly solved. The method comprises the following implementation steps: depositing a magnesium oxide film on a sapphire substrate, and alternatively depositing a multilayer cobalt ferrite film and a multilayer barium titanate film on the substrate; spinning polymethyl methacrylate on the surface of the final barium titanate film, and removing a single crystal magnesium oxide film by using an ammonium sulfate solution, so that the magnetoelectric composite film attached to polymethyl methacrylate is separated from the sapphire substrate; and transferring the magnetoelectric composite film separated from the sapphire substrate onto a subsequent needed substrate, thereby obtaining a self-supported magnetoelectric film compounded by the multilayer cobalt ferrite film and the multilayer barium titanate film. The multilayer barium titanate and multilayer cobalt ferrite composite film disclosed by the invention is large in surface coupling property, the magnetic and electrical properties are enhanced, the substrate clamping and electric leakage problems are reduced, and the method can be used for preparing a magnetoelectric sensor.
Method for preparing and transferring multilayer barium titanate and multilayer cobalt ferrite magnetoelectric composite film
LU XIAOLI (Autor:in) / ZHANG JIWEN (Autor:in) / ZHANG CHUNFU (Autor:in) / ZHANG JINCHENG (Autor:in) / HAO YUE (Autor:in)
10.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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