Advances in YBa2Cu3O7-delta grain boundary biepitaxial Josephson junctions: Transport properties and mesoscopic effects
Artikel i vetenskaplig tidskrift, 2007

We report on the latest developments in the study of transport properties of YBa2CU3O7-delta (YBCO)-based grain boundary (GB) biepitaxial Josephson junctions. We have successfully extended the fabrication process s,. originally developed for (110) oriented SrTiO3 substrates, to (110) oriented LaAlO3 substrates in view of microwave applications. We will report, also, on the observation of conductance fluctuations, we believe related to the coherent diffusion of quasi-particles across the GB. These results, together with the recent observation of macroscopic quantum tunneling and energy level quantization in these Junctions, could help cast some light on the mechanism involved in transport across grain boundaries and in revising the role and the effect of quasi particles in d-wave transport.

Författare

D. Stornaiuolo

Universita degli Studi di Napoli Federico II

D. Born

Universita degli Studi di Napoli Federico II

D. Dalena

Università degli Studi della Campania Luigi Vanvitelli

E. Gambale

Università degli Studi della Campania Luigi Vanvitelli

G. Rotoli

Universita degli Studi dell'Aquila

Thilo Bauch

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

A. Tagliacozzo

Universita degli Studi di Napoli Federico II

A. Barone

Universita degli Studi di Napoli Federico II

Floriana Lombardi

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

F. Tafuri

Universita degli Studi di Napoli Federico II

IEEE Transactions on Applied Superconductivity

1051-8223 (ISSN)

Vol. 17 2 225-228

Ämneskategorier

Fysik

DOI

10.1109/tasc.2007.898708

Mer information

Senast uppdaterat

2018-09-06