NSF/ONR: Interfaces between High Temperature Superconductors and Various Isotropic Metallic Oxides in Epitaxial Superconductor-Normal Superconductor Heterostructures

9421947此外，国家科学基金会的具体研究任务包括：(1)研究各种各向同性金属氧化物，包括非铜氧化物基各向同性金属氧化物和一类新的铜基各向同性金属氧化物(这些金属氧化物可以应用于许多其他器件，以及电光器件中的电极)，(2)用各种各向同性金属氧化物制备超导体-正常金属-超导体外延异质结并表征它们的界面，(3)研究正常金属势垒与超导体之间界面电阻的来源。将测量平面和夹层型结的结特性，如临界电流和结电阻。具有广泛结构、电学、化学和磁性的各种金属氧化物的正常金属势垒将被用来控制高温超导体与正常金属势垒之间的界面性质。***

9421947 Eom The specific research tasks for the NSF include: (1) investigation of various isotropic metallic oxides, both non copper-oxide-based isotropic metallic oxides and a new family of copper-oxide-based isotropic metallic oxides (these metallic oxides can be applied in many other devices, and electrodes in electro-optic devices), (2) the fabrication of superconductor-normal metal-superconductor epitaxial heterostructures with various isotropic metallic oxides and characterization of their interfaces, (3) investigation of the origin of interface resistance between normal metal barriers and superconductors. Junction properties such as critical current and junction resistance will be measured for both planar and sandwich type junctions. Normal metal barriers of various metallic oxides with a wide range of structural, electrical, chemical and magnetic properties will be used to control the interface properties between high Tc superconductors and the normal metal barriers. ***