Short note on magnetic impurities in SmFeAsO${}_{1-x}$F${}_x$ (x=0, 0.07) compounds revealed by zero-field ${}^{75}$As NMR

Abstract

We have performed zero-field ${}^{75}$As nuclear magnetic resonance study of SmFeAsO${}_{1-x}$F${}_x$ (x=0, 0.07) polycrystals in a wide frequency range at various temperatures. ${}^{75}$As resonance line was found at around 265 MHz revealing the formation of the intermetallic FeAs clusters in the new layered superconductors. We have also demonstrated that NMR is a sensitive tool for probing the quality of these materials.

Revised authorship

Cited by in corpus (1)

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