Transport properties of [100] tilt and twist biepitaxial Y-Ba-Cu-O junctions

Author

Sarnelli, Ettore ; Carillo, Franco ; Testa, Gianluca ; Lombardi, Floriana ; Granozio, F.M. ; Ricci, Fabrizio ; Scotti di Uccio, Umberto ; Tafuri, Francesco

Author_Institution

Istituto di Cibernetica, CNR, Arco Felice, Italy

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

776

Lastpage

779

Abstract

The effects of the order parameter symmetry and the interface grain boundary orientation on the transport properties of YBa₂Cu₃O_7-x biepitaxial grain boundary junctions have been investigated. 45° [100] tilt and twist junctions on SrTiO₃ [110] and MgO [110] substrates by employing respectively MgO and SrTiO₃ as seed layers have been fabricated. More complex junctions by using CeO as seed layers have also been fabricated and analyzed. The analysis of experimental data points towards a predominant d-wave symmetry of the superconductive order parameter

Keywords

Josephson effect; barium compounds; high-temperature superconductors; superconducting epitaxial layers; tilt boundaries; twin boundaries; yttrium compounds; CeO; CeO seed layer; Josephson junction; MgO; MgO substrate; SrTiO₃; SrTiO₃ substrate; YBa₂Cu₃O_7-x biepitaxial grain boundary junction; YBa₂Cu₃O₇; interface grain boundary orientation; superconductive order parameter symmetry; tilt junction; transport properties; twist junction; Commercialization; Councils; Critical current; Fabrication; SQUIDs; Substrates; Superconducting device noise; Superconductivity; Testing; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919460

Filename

919460