<div class="csl-bib-body">
<div class="csl-entry">Krannich, S., Lamago, D., Manske, D., Bauer, E., Prokofiev, A., Heid, R., Bohnen, K.-P., & Weber, F. (2015). Absence of spin-orbit coupling induced effects on the lattice dynamics in CePt₃Si. <i>Physical Review B</i>, <i>92</i>(125137). https://doi.org/10.1103/physrevb.92.125137</div>
</div>
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dc.identifier.issn
2469-9950
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/151504
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dc.description.abstract
Motivated by model calculations for the heavy fermion superconductor CePt3Si predicting phonon anomalies because of anti-symmetric spin-orbit coupling we performed a detailed experimental study of the lattice dynamical properties of CePt3Si. In particular, we investigated the dispersion of transverse acoustic and low energy optic phonon branches along the [110] direction using inelastic neutron scattering. In these branches, we found deviations from our ab-initio lattice dynamical calculations, which overall give a good description of the phonon dispersion in CePt3Si. However, the agreement for the [110] transverse modes can be improved if we neglect the Ce 4f states, done in an additional calculation. We conclude that the lattice dynamics of CePt3Si are conventional and that the observed deviations are not related to effects of anti-symmetric spin-orbit-coupling. More likely, ab-initio calculations overestimate the exchange between different phonon branches, particularly in the presence of 4f electron states. Our results imply that the ASOC plays less a role in non-centrosymmetric superconductors than commonly believed.
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
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dc.subject
Electronic, Optical and Magnetic Materials
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dc.title
Absence of spin-orbit coupling induced effects on the lattice dynamics in CePt₃Si
en
dc.type
Artikel
de
dc.type
Article
en
dc.type.category
Original Research Article
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tuw.container.volume
92
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tuw.container.issue
125137
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
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wb.publication.intCoWork
International Co-publication
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tuw.researchTopic.id
M3
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tuw.researchTopic.id
M2
-
tuw.researchTopic.id
Q6
-
tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.name
Quantum Many-Body Systems
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
30
-
tuw.researchTopic.value
50
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dcterms.isPartOf.title
Physical Review B
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tuw.publication.orgunit
E138-04 - Forschungsbereich Quantum Materials
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tuw.publication.orgunit
E138-03 - Forschungsbereich Functional and Magnetic Materials
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tuw.publisher.doi
10.1103/physrevb.92.125137
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dc.identifier.eissn
2469-9969
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dc.description.numberOfPages
7
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wb.sci
true
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.facultyfocus
Physik der Materie
de
wb.facultyfocus
Physics of Matter
en
wb.facultyfocus.faculty
E130
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item.languageiso639-1
en
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no Fulltext
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Artikel
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Article
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Publications
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Publications
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http://purl.org/coar/resource_type/c_18cf
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http://purl.org/coar/resource_type/c_18cf
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none
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crisitem.author.dept
E138-03 - Forschungsbereich Functional and Magnetic Materials