<div class="csl-bib-body">
<div class="csl-entry">Weber, F., Pintschovius, L., Hradil, K., & Petitgrand, D. (2012). Phonon line shapes in the vortex state of the phonon-mediated superconductor YNi₂B₂C. <i>Physical Review B</i>, <i>85</i>(22), Article 224525. https://doi.org/10.1103/physrevb.85.224525</div>
</div>
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dc.identifier.issn
2469-9950
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/163912
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dc.description.abstract
We present an inelastic neutron-scattering study of phonon line shapes in the vortex state of the type II superconductor YNi2B2C. In a previous study [ Phys. Rev. Lett. 101 237002 (2008)] it was shown that certain phonons exhibit a clear signature of the superconducting gap 2Δ on entering the superconducting state. Our interest was to find out whether or not the line shape of such phonons reflects the inhomogeneous nature of the vortex state induced by a magnetic field smaller than the upper critical field Bc2.We found that this is indeed the case because the observed phonon line shapes can be well described by a model considering the phonon as a local probe of the spatial variation of the superconducting gap. We found that even at B=3 T, where the intervortex distance is less than 300 Å, the phonon line shape still shows evidence for a variation of the gap.
en
dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review B
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dc.subject
Condensed Matter Physics
en
dc.subject
Electronic, Optical and Magnetic Materials
en
dc.subject
superconductor
en
dc.subject
Electron-phonon coupling
en
dc.title
Phonon line shapes in the vortex state of the phonon-mediated superconductor YNi₂B₂C
en
dc.type
Artikel
de
dc.type
Article
en
dc.type.category
Original Research Article
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tuw.container.volume
85
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tuw.container.issue
22
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tuw.journal.peerreviewed
true
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tuw.peerreviewed
true
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wb.publication.intCoWork
International Co-publication
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tuw.researchTopic.id
X1
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tuw.researchTopic.name
außerhalb der gesamtuniversitären Forschungsschwerpunkte
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tuw.researchTopic.value
100
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dcterms.isPartOf.title
Physical Review B
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tuw.publication.orgunit
E057-04 - Fachbereich Röntgenzentrum
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tuw.publisher.doi
10.1103/physrevb.85.224525
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dc.identifier.articleid
224525
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dc.identifier.eissn
2469-9969
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dc.description.numberOfPages
6
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wb.sci
true
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wb.sciencebranch
Physik, Mechanik, Astronomie
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wb.sciencebranch
Sonstige und interdisziplinäre Naturwissenschaften