A pathway to high Tc and Jc with the hetero–nano interface of the Tl2Ba2Ca2Cu3O10/Al heterostructure

Abstract

For the first time, we report on a pathway to high Tc and Jc using the superconducting hetero–nano structures of Tl2Ba2Ca2Cu3O10/Al (Tl-2223/Al). A two-dimensional nano-stripe structure at the interface of Tl-2223/Al was fabricated using the room-temperature electrochemical complexing technique. The confinement of the charge transport along the stripes at the hetero–nano interface was studied at different temperatures ranging from 300 K to 77 K. The high Jc along the interface at different temperatures is explained on the basis of Andreev reflections from the interface followed by confinement of charge transport along the ab-plane (superconducting path) of the Tl-2223 unit cell. The model has been proposed to explain the mechanism of high Tc and Jc observed at the hetero–nano interface. The phenomenon of a pathway to high Tc and Jc using the Tl-2223/Al hetero–nano interface was ascertained as a result of destroying the interface by irradiating the heterostructure.