On the proximity effect between normal metals and cuprate superconductors

Journal of Applied Physics - Tập 69 Số 7 - Trang 4137-4139 - 1991
G. Deutscher1, R. W. Simon2
1Department of Applied Physics, Stanford University, Stanford, California 94305
2TRW Space & Technology Group, Redondo Beach, California 90278 and Department of Applied Physics, Stanford University, Stanford, California 94305

Tóm tắt

We consider the proximity effect between high-temperature superconducting cuprates and ordinary metals in the context of superconductor-normal-superconductor (S-N-S) microbridges. The theory of the proximity effect for conventional superconductors predicts that superconductivity can only be weakly induced by the coupling of the cuprates with metals such as gold or silver. Experimental investigations of this system have yielded results consistent with this prediction. We discuss the possibility of fabricating S-N-S microbridges with desirable properties by using more appropriate normal layers in the devices.

Từ khóa


Tài liệu tham khảo

1989, IEEE Trans Mag., 25, 1298, 10.1109/20.92844

1990, Appl. Phys. Lett., 56, 1487, 10.1063/1.103156

1990, Appl. Phys. Lett., 57, 1152, 10.1063/1.103517

1989, Sov. Phys. JETP, 69, 805

1963, Phys. Rev. Lett., 10, 486, 10.1103/PhysRevLett.10.486

1991, Appl. Phys. Lett., 58, 753, 10.1063/1.104537