A Pathway to High Tc and Jc With Hetero-Nano Interface of Tl-2223/Al Heterostructure

Details A Pathway to High Tc and Jc With Hetero-Nano Interface of Tl-2223/Al Heterostructure A Pathway to High Tc and Jc With Hetero-Nano Interface of Tl-2223/Al Heterostructure

2002-07-17

arxiv.org/abs/cond-mat/0207436v1

Physics

Condensed Matter

Superconductivity

10 pages, 5 figures

Scientific paper

10.1088/0953-2048/15/11/311

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

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