Properties of MgB2 films deposited on single crystal Ag layers

- MgB2 thin film can be fabricated on single crystal Ag(1 1 1) face.
- As the thickness of Ag layer increases, the Tc and Jc of MgB2 decreases. When the Ag layer is 20 nm thick, the reduction of Tc is about 2 K.
- Single crystal Ag layer is better than polycrystalline Ag layer in MgB2 deposition.
- May enable development of MgB2 SNS junctions with single crystal Ag in the future.