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Evidence of a structural phase transition in superconducting SmFeAsO 1-xFx from 19F NMRPublished in
2013
Volume: 25
Issue: 2
We report resistivity, magnetization and 19F NMR results in a polycrystalline sample of SmFeAsO0.86F0.14. The resistivity and magnetization data show a sharp drop at 48 K indicating a superconducting transition. The nuclear spin-lattice rate (1/T1) and spin-spin relaxation rate (1/T2) clearly show the existence of a structural phase transition near 163 K in the sample, which also undergoes a superconducting transition. This finding creates interest in exploring whether this is unique for Sm based systems or is also present in other rare-earth based 1111 superconductors. {\textcopyright} 2013 IOP Publishing Ltd.
Topics: Spin–spin relaxation (57)%57% related to the paper, Spin–lattice relaxation (57)%57% related to the paper, Magnetization (53)%53% related to the paper, Relaxation (NMR) (52)%52% related to the paper and Superconductivity (52)%52% related to the paper
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Content may be subject to copyright.This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics:... ...This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics: Condensed Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0953-8984/25/2/025701
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