Publication
Title
Unique nanostructural features in Fe, Mn-doped YBCO thin films
Author
Abstract
An attempt to grow a thin epitaxial composite fi lm of YBa 2 Cu 3 O 7 − δ ( YBCO ) with spinel MnFe 2 O 4 ( MFO ) nanoparticles on a LAO substrate using the CSD approach resulted in a decomposition of the spinel and various doping modes of YBCO with the Fe and Mn cations. These nanostructural effects lead to a lowering of T c and a slight J c increase in fi eld. Using a combination of advanced transmission electron microscopy ( TEM ) techniques such as atomic resolution high-angle annular dark fi eld scanning TEM, energy dispersive x-ray spectroscopy and electron energy-loss spectroscopy we have been able to decipher and characterize the effects of the Fe and Mn doping on the fi lm architecture. The YBaCuFeO 5 anion-de fi cient double perovskite phase was detected in the form of 3D inclusions as well as epitaxially grown lamellas within the YBCO matrix. These nano-inclusions play a positive role as pinning centers responsible for the J c / J sf ( H ) dependency smoothening at high magnetic fi elds in the YBCO- MFO fi lms with respect to the pristine YBCO fi lms
Language
English
Source (journal)
Superconductor science and technology. - Bristol
Publication
Bristol : 2016
ISSN
0953-2048
DOI
10.1088/0953-2048/29/12/125009
Volume/pages
29 :12 (2016) , 9 p.
Article Reference
125009
ISI
000387680100001
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 08.11.2016
Last edited 09.10.2023
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