| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1592017 | Solid State Communications | 2014 | 5 Pages |
•Coexistence of superconductivity and magnetism.•Study of magnetism using 3 different local techniques.•Change at Fe magnetic moment dynamics below superconducting transition temperature.
We have studied the magnetism in superconducting single crystals of EuFe2As1.4P0.6 by using the local probe techniques of zero-field muon spin rotation/relaxation and 151Eu/57Fe Mössbauer spectroscopy. All of these measurements reveal magnetic hyperfine fields below the magnetic ordering temperature TM=18K of the Eu2+ moments. The analysis of the data shows that there is a coexistence of antiferromagnetism, resulting from Eu2+ moments ordered along the crystallographic c -axis, and superconductivity below TSC≈TSC≈ 10 K. We find indications for a change in the dynamics of the small Fe magnetic moments (~0.07 μBμB) at T⁎≃15K that may be triggering the onset of superconductivity: below T⁎ the Fe magnetic moments seem to be “frozen” within the ab-plane.
