<div class="csl-bib-body">
<div class="csl-entry">Bodenseher, A., Unterrainer, R., Semper, F., & Eisterer, M. (2023, November 28). <i>Neutron irradiation of coated conductors: introduced defects and mechanisms for the changes of superconducting properties</i> [Conference Presentation]. International Symposioum on Superconductivity 2023, Wellington, New Zealand.</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/192874
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dc.description.abstract
Applications of high temperature superconducting tapes in radiation environments, in particular magnets for fusion or high-energy physics, have become of increasing interest in recent years. Neutron radiation frequently exerts the most deleterious effects on the material in these applications; hence an understanding of the created defects and their relevance for the observed changes is vital for guiding the design of conductors and magnets. High-energy neutrons are known to produce defects of a few nanometres in size as observed by transmission electron microscopy. These defects are efficient pinning centers, and therefore can enhance the critical currents in the superconductor significantly. However, less is known about the introduced smaller defects. Any defects increase scattering of charge carriers which breaks cooper pairs in high temperature superconductors and reduces both, the transition temperature and the density of superconducting charge carriers. The latter counteracts the beneficial effect of increased flux pinning and eventually leads to a degradation of the critical currents.
Neutron irradiation experiments were performed in the TRIGA-Mark II reactor in Vienna. The relation between the observed changes of resistivity, mobility and density of charge carriers with the superconducting properties, namely transition temperature, superfluid density and critical current will be discussed. The most relevant defects for the degradation of the properties are likely too small to be observed by electron microscopy. Single displaced atoms in the copper oxygen planes seem to be most efficient for scattering charge carriers in cuprate superconductors and hence responsible for the decrease of the critical current in coated conductors exposed to high fluences of neutrons. On the other hand, they were also found to contribute to flux pinning at low temperatures.
en
dc.description.sponsorship
European Commission
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dc.description.sponsorship
Österr. Akademie der Wissenschaften
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dc.language.iso
en
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dc.subject
critical currents
en
dc.subject
high temperature superconductors
en
dc.subject
radiatio damage
en
dc.subject
coated condcuctors
en
dc.subject
nuclear fusion
en
dc.title
Neutron irradiation of coated conductors: introduced defects and mechanisms for the changes of superconducting properties
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
2032036
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dc.relation.grantno
MG2021-3, MG2023-5
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dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.project.title
High-temperature superconducting materials for fusion magnets. The partner project is KKKÖ ME
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tuw.project.title
Matching Grant zu EUROfusion ME
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
E3
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tuw.researchTopic.id
M8
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Climate Neutral, Renewable and Conventional Energy Supply Systems
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tuw.researchTopic.name
Structure-Property Relationsship
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tuw.researchTopic.value
40
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tuw.researchTopic.value
30
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tuw.researchTopic.value
30
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tuw.publication.orgunit
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
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tuw.author.orcid
0000-0002-2959-1962
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tuw.author.orcid
0000-0002-8720-9004
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tuw.author.orcid
0009-0003-6212-0657
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tuw.author.orcid
0000-0002-7160-7331
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tuw.event.name
International Symposioum on Superconductivity 2023
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tuw.event.startdate
28-11-2023
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tuw.event.enddate
30-11-2023
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Wellington
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tuw.event.country
NZ
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tuw.event.presenter
Eisterer, Michael
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.grantfulltext
none
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item.cerifentitytype
Publications
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item.openairetype
conference paper not in proceedings
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.fulltext
no Fulltext
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crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
