Perpendicular transport properties of YBa_2Cu_3O_{7-δ}/PrBa_2Cu_3O_{7-δ} superlattices
arXiv:cond-mat/0002111 · doi:10.1016/S0921-4526(99)02170-5
Abstract
The coupling between the superconducting planes of YBa2Cu3O{7-δ}/ PrBa2Cu3O{7-δ} superlattices has been measured by c-axis transport. We show that only by changing the thickness of the superconducting YBa2Cu3O{7-δ} layers, it is possible to switch between quasi-particle and Josephson tunneling. From our data we deduce a low temperature c-axis coherence length of 0.27 nm.
Presented at LT22, contains 2 pages and 2 figures. to appear in Physica B