<div class="csl-bib-body">
<div class="csl-entry">Chudy, M., Eisterer, M., Weber, H., Veterníková, J., Sojak, S., & Slugeň, V. (2012). Point defects in YBa₂Cu₃O₇₋ₓ studied using positron annihilation. <i>SUPERCONDUCTOR SCIENCE & TECHNOLOGY</i>, <i>25</i>(7), Article 075017. https://doi.org/10.1088/0953-2048/25/7/075017</div>
</div>
-
dc.identifier.issn
0953-2048
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/163752
-
dc.description.abstract
Fast neutron irradiation is a powerful technique for introducing additional pinning centers into high temperature superconductors. The spherical defects with sizes of a few nanometers are considered to be effective pinning centers, enhancing J_c. Their morphology is well-known and has already been investigated by several authors in great detail. However, only very little is known about the nature and density of smaller and point defects, which are invisible in transmission electron microscopy. Positron annihilation lifetime spectroscopy was applied to investigate the nature and the concentration of small point-like defects. In this work, the influence of small point defects, such as vacancies and vacancy clusters, on the superconducting properties of YBa2Cu3O7−x bulks was studied; these were introduced by irradiation in the TRIGA Mark II reactor in Vienna. J_c and T_c measurements were performed prior to and after each irradiation step. The samples were irradiated up to a fast neutron ( > 0.1 MeV) fluence of 6 × 1021 m−2. The two kinds of defects—the large collision cascades and the small point-like defects—contribute to the decrease of Tc as well as to the Jc enhancement in astonishingly similar ways.
en
dc.language.iso
en
-
dc.publisher
IOP PUBLISHING LTD
-
dc.relation.ispartof
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
-
dc.subject
Electrical and Electronic Engineering
en
dc.subject
Condensed Matter Physics
en
dc.subject
Ceramics and Composites
en
dc.subject
Materials Chemistry
en
dc.subject
Metals and Alloys
en
dc.title
Point defects in YBa₂Cu₃O₇₋ₓ studied using positron annihilation
en
dc.type
Artikel
de
dc.type
Article
en
dc.contributor.affiliation
Slovak University of Technology in Bratislava, Slovakia
-
dc.contributor.affiliation
Slovak University of Technology in Bratislava, Slovakia
-
dc.contributor.affiliation
Slovak University of Technology in Bratislava, Slovakia
-
dcterms.dateSubmitted
2012-01-13
-
dc.type.category
Original Research Article
-
tuw.container.volume
25
-
tuw.container.issue
7
-
tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
wb.publication.intCoWork
International Co-publication
-
tuw.researchTopic.id
M7
-
tuw.researchTopic.name
Special and Engineering Materials
-
tuw.researchTopic.value
100
-
dcterms.isPartOf.title
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
-
tuw.publication.orgunit
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
tuw.publication.orgunit
E141 - Atominstitut
-
tuw.publisher.doi
10.1088/0953-2048/25/7/075017
-
dc.date.onlinefirst
2012-06-15
-
dc.identifier.articleid
075017
-
dc.identifier.eissn
1361-6668
-
dc.description.numberOfPages
5
-
tuw.author.orcid
0000-0002-7160-7331
-
wb.sci
true
-
wb.sciencebranch
Physik, Mechanik, Astronomie
-
wb.sciencebranch.oefos
12
-
wb.facultyfocus
Physik der Materie
de
wb.facultyfocus
Physics of Matter
en
wb.facultyfocus.faculty
E130
-
item.languageiso639-1
en
-
item.openairecristype
http://purl.org/coar/resource_type/c_2df8fbb1
-
item.fulltext
no Fulltext
-
item.openairetype
research article
-
item.grantfulltext
none
-
item.cerifentitytype
Publications
-
crisitem.author.dept
E141 - Atominstitut
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity