-, Ravikant and Ojha, V.N. and Kumar, Ashok (2019) Fabrication of ferroelectric tunnel junction using superconducting and magnetic electrodes. Vacuum, 159. pp. 464-467. ISSN 0042-207X

PDF - Published Version Restricted to Registered users only Download (897Kb) | Request a copy

Abstract

We report successful synthesis of superconducting Bi-Sr-Ca-Cu-2.O-x(BSCCO) target for fabrication of heterostructure thin films. For the first time, we have grown LSMO (50 nm)/PZT (5 nm)/BSCCO (100 nm)/LAO (100) heterostructure by pulsed laser deposition technique to understand the tunneling effect and role of the superconducting electrode on transport and magnetic properties. The bulk superconductor Bi-Sr-Ca-Cu-2.O-x(BSCCO) and heterostructure shows superconducting phase transition near 92 K and 110 K, respectively. Magnetic susceptibility data indicate large negative susceptibility below 110 K which confirms the superconducting nature of heterostructure bottom electrode. A large hysteresis in current-voltage data has been obtained at 78 K below the superconducting state of bottom electrode. These results suggest that the ferromagnetic/ferroelectric/superconductor tunnel structure may provide four distinct resistance states depending on the direction of ferroelectric polarization.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Vacuum.
Subjects:	Materials Science Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	19 Aug 2026 11:10
Last Modified:	19 Aug 2026 11:10
URI:	https://npl.csircentral.net/id/eprint/4200

Actions (login required)

View Item