Title
Structural and electrical characterization of ultra-thin SrTiO3 tunnel barriers grown over YBa2Cu3O7 electrodes for the development of high Tc Josephson junctions
Date Issued
14 December 2012
Access level
metadata only access
Resource Type
journal article
Author(s)
Sirena M.
Agüero Guzmán L.A.
González Sutter J.
Pons Vargas S.
Steren L.B.
Bernard R.
Trastoy J.
Villegas J.E.
Briático J.
Bergeal N.
Lesueur J.
Faini G.
Universidad Nacional de Cuyo
Publisher(s)
Institute of Physics Publishing
Abstract
The transport properties of ultra-thin SrTiO3 (STO) layers grown over YBa2Cu3O7 electrodes were studied by conductive atomic force microscopy at the nano-scale. A very good control of the barrier thickness was achieved during the deposition process. A phenomenological approach was used to obtain critical parameters regarding the structural and electrical properties of the system. The STO layers present an energy barrier of 0.9 eV and an attenuation length of 0.23 nm, indicating very good insulating properties for the development of high-quality Josephson junctions. © 2012 IOP Publishing Ltd.
Volume
23
Issue
49
Language
English
OCDE Knowledge area
Nano-materiales
Ingeniería eléctrica, Ingeniería electrónica
Scopus EID
2-s2.0-84891687278
PubMed ID
Source
Nanotechnology
ISSN of the container
09574484
Sources of information:
Directorio de Producción Científica
Scopus