Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by μsR

Sanna S, De Renzi R, Lamura G, Ferdeghini C, Martinelli A, Palenzona A, Putti M, Tropeano M & Shiroka T
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Sanna, S., De Renzi, R., Lamura, G., Ferdeghini, C., Martinelli, A., Palenzona, A., … Shiroka, T. (2009). Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by μsR. Journal of Superconductivity and Novel Magnetism, 22(6), 585-588. https://doi.org/10.1007/s10948-009-0472-y
https://www.dora.lib4ri.ch/psi/islandora/object/psi:50982

We report μSR measurements on SmFeAsO1-xFx which helped us to identify the signature of diluted ferromagnetic inclusions, ubiquitous in the iron pnictides. These impurities are characterized by a Curie temperature close to room temperature and they seem responsible for a non negligible magnetic relaxation of the implanted muons, which should not be confused with intrinsic pnictide properties.

Details
Publication Type

Journal Article

Title

Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by μsR

Author(s)

Sanna, S.

De Renzi, R.

Lamura, G.

Ferdeghini, C.

Martinelli, A.

Palenzona, A.

Putti, M.

Tropeano, M.

Shiroka, T. (3500 Muon Spin Spectroscopy)

Journal

Journal of Superconductivity and Novel Magnetism

Volume

22

Issue

6

Start Page

585

End Page

588

Publication Year

2009

Peer Review

Yes

Keywords

pnictides
superconductivity
magnetic impurities
muon spin spectroscopy

Facility

SmuS

Beamline

GPS

Collection

PSI Publications