  A pathway to high Tc and Jc with superconducting hetero-nano structures of
Tl-2223/Al are reported first time. Two dimensional nano-stripe structure at
the interface of Tl-2223/Al was fabricated with room temperature
electrochemical complexing technique. The confinement of the charge transport
along the hetero-nano stripes at the 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 ab-plane
(superconducting path) of Tl-2223 unit cell. The model has been proposed to
explain the mechanism of high Tc and Jc observed at hetero-nano interface. The
phenomenon of a pathway to high Tc and Jc with Tl-2223/Al hetero-nano interface
was ascertained by destroying the interface by irradiating the heterostructure.
  * Author for correspondence
