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dc.contributor.author
Meinero, M.
dc.contributor.author
Bonfà, Pietro
dc.contributor.author
Onuorah, Ifeanyi J.
dc.contributor.author
Sanna, Samuele
dc.contributor.author
De Renzi, Roberto
dc.contributor.author
Eremin, Ilya
dc.contributor.author
Müller, Marvin A.
dc.contributor.author
Orain, Jean-Christophe
dc.contributor.author
Martinelli, Alberto
dc.contributor.author
Provino, Alessia
dc.contributor.author
Manfrinetti, Pietro
dc.contributor.author
Putti, Marina
dc.contributor.author
Shiroka, Toni
dc.contributor.author
Lamura, Gianrico
dc.date.accessioned
2021-08-06T12:04:49Z
dc.date.available
2021-07-27T02:52:00Z
dc.date.available
2021-08-06T12:04:49Z
dc.date.issued
2021-07-13
dc.identifier.issn
2045-2322
dc.identifier.other
10.1038/s41598-021-93625-7
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/497757
dc.identifier.doi
10.3929/ethz-b-000497757
dc.description.abstract
The electronic ground state of iron-based materials is unusually sensitive to electronic correlations. Among others, its delicate balance is profoundly affected by the insertion of magnetic impurities in the FeAs layers. Here, we address the effects of Fe-to-Mn substitution in the non-superconducting Sm-1111 pnictide parent compound via a comparative study of SmFe1-xMnxAsO samples with x(Mn) = 0.05 and 0.10. Magnetization, Hall effect, and muon-spin spectroscopy data provide a coherent picture, indicating a weakening of the commensurate Fe spin-density-wave (SDW) order, as shown by the lowering of the SDW transition temperature TSDW with increasing Mn content, and the unexpected appearance of another magnetic order, occurring at T∗≈ 10 and 20 K for x= 0.05 and 0.10, respectively. We attribute the new magnetic transition at T∗, occurring well inside the SDW phase, to a reorganization of the Fermi surface due to Fe-to-Mn substitutions. These give rise to enhanced magnetic fluctuations along the incommensurate wavevector Q2= (π± δ, π± δ) , further increased by the RKKY interactions among Mn impurities.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Macmillan Publishers
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Mn-induced Fermi-surface reconstruction in the SmFeAsO parent compound
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Scientific Reports
ethz.journal.volume
11
en_US
ethz.journal.abbreviated
Sci Rep
ethz.pages.start
14373
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Exotic matter and correlated quantum phenomena
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.grant.agreementno
169455
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Projekte MINT
ethz.date.deposited
2021-07-27T02:52:02Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-06T12:04:58Z
ethz.rosetta.lastUpdated
2022-03-29T10:58:30Z
ethz.rosetta.versionExported
true
ethz.COinS
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