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| - Metallic behavior of GaAs/BaTiO 3 heterostructure
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| - The integration of III-V semiconductors on functional perovskite-oxide can lead to new material properties and new device applications by combining the rich properties of perovskite-oxides together with the superior optical and electronic properties of III-V semiconductors. The structural and electronic properties of the surface and interface of the GaAs/BaTiO 3 are studied using first-principles calculations. We point out the energetically favorable GaAs/BaTiO 3 interfaces according to the GaAs initial adsorption on the BaTiO 3(001) substrate. Our calculations predict the existence of the metallic behavior at the GaAs/BaTiO 3 interfaces.
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