NDLI: CaBaCuO Ultrathin Films and Junctions

Content Provider	IEEE Xplore Digital Library
Author	Born, D. Stornaiuolo, D. Tafuri, F. Medaglia, P.G. Orgiani, P. Lombardi, F. Kirtley, J.R. Kogan, V.G.
Copyright Year	2002
Abstract	We investigated transport properties of ultrathin CaBaCuO (CBCO) bridges, focusing on vortex dynamics, and Josephson bicrystal junctions. The CBCO films used are composed of a stacking sequence of two structural subunits having different functions, namely a Ba-based charge reservoir (CR) block and a Ca-based infinite layer (IL) superconducting block. SQUID microscopy investigations of these films provide Pearl lengths more than the bridge widths. Measuring current-voltage characteristics we found evidence that at high temperatures the vortices are thermally activated at the edge of the bridge and pushed in, causing dissipation and a power-law dependence of the voltage from the current. At lower temperatures, the experimental curves change their shape. We compared these data with the predicted behavior for vortex quantum tunneling and we found very good agreement. Moreover, we have realized Josephson junctions composed of only a few superconducting CuO₂ planes. The CBCO films used in these experiments are only 8 nm thick and have six superconducting CuO₂ planes. The simple structure of the GB allows a reliable estimation of the coupling along ab the planes of the CuO₂. We calculate for 24deg symmetric and asymmetric cases a critical current density per plane of about (1-3) kA/cm².
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3581
Ending Page	3584
Page Count	4
File Size	865537
File Format	PDF
ISSN	10518223
Volume Number	17
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting films Josephson junctions Bridge circuits High temperature superconductors Stacking Reservoirs Chromium Superconducting epitaxial layers SQUIDs Microscopy vortex quantum tunneling High-$T_{\rm c}$ films multilayers Perl vortex dynamics superlattices thin films
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hysteretic Josephson junctions from high T/sub c/ superconducting thin films

TEM Study of La-Doped ErBCO Layer Deposited on Ramp-Surfaces

Epitaxial Growth of Sputtered Ultra-Thin NbN Layers and Junctions on Sapphire

Fabrication of Ramp-Edge Junctions With High $I_{rm c}R_{rm n}$ Products by Using Cu-Poor Precursor

High-$T_{rm c}$ DC SQUIDs for Magnetoencephalography

YBaCuO/TlBaCaCuO epitaxial thin film superconducting multilayers-a novel approach to intrinsic Josephson junction devices

Vortex Interaction Energy in Planar Josephson Junction Arrays at High Density

Characteristics of High- $T_{rm c}$ Josephson Junction Fabricated by Focused Ion Beam and Ion Damage

Single Cooper-pair tunneling junctions using high-T/sub c/ superconducting materials

CaBaCuO Ultrathin Films and Junctions

Similar Documents

Hysteretic Josephson junctions from high T/sub c/ superconducting thin films

TEM Study of La-Doped ErBCO Layer Deposited on Ramp-Surfaces

Epitaxial Growth of Sputtered Ultra-Thin NbN Layers and Junctions on Sapphire

Fabrication of Ramp-Edge Junctions With High $I_{rm c}R_{rm n}$ Products by Using Cu-Poor Precursor

High-$T_{rm c}$ DC SQUIDs for Magnetoencephalography

YBaCuO/TlBaCaCuO epitaxial thin film superconducting multilayers-a novel approach to intrinsic Josephson junction devices

Vortex Interaction Energy in Planar Josephson Junction Arrays at High Density

Characteristics of High- $T_{rm c}$ Josephson Junction Fabricated by Focused Ion Beam and Ion Damage

Single Cooper-pair tunneling junctions using high-T/sub c/ superconducting materials

CaBaCuO Ultrathin Films and Junctions