Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by muSR

Details Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by muSR Intrinsic ferromagnetic impurity phases in SmFeAsO1-xFx detected by muSR

2009-09-16

arxiv.org/abs/0909.3004v1

J. Superc. Nov. Mag. vol. 22 pag 585-588 (2009)

Physics

Condensed Matter

Superconductivity

The International Conference on FeAs High Tc Superconducting Multilayers and Related Phenomena (Superstripes2008), Rome, Italy

Scientific paper

10.1007/s10948-009-0472-y

We report about muSR 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, that should not be confused with intrinsic pnictide properties.

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