Physics – Condensed Matter – Superconductivity
Scientific paper
2011-10-28
Physics
Condensed Matter
Superconductivity
Approved for publication in Phys. Rev. Letters
Scientific paper
We report on the recovery of the short-range static magnetic order and on the concomitant degradation of the superconducting state in optimally F-doped SmFe_(1-x)Ru_(x)AsO_0.85F_0.15 for 0.1< x<0.6. The two reduced order parameters coexist within nanometer-size domains in the FeAs layers and finally disappear around a common critical threshold x_c=0.6. Superconductivity and magnetism are shown to be closely related to two distinct well-defined local electronic environments of the FeAs layers. The two transition temperatures, controlled by the isoelectronic and diamagnetic Ru substitution, scale with the volume fraction of the corresponding environments. This fact indicates that superconductivity is assisted by magnetic fluctuations, which are frozen whenever a short-range static order appears, and totally vanish above the magnetic dilution threshold x_c.
Allodi G.
Bonfà Pietro
Carretta Pietro
Lamura Gianrico
Martinelli Agostino
No associations
LandOfFree
Correlated trends of coexisting magnetism and superconductivity in optimally electron-doped oxy-pnictides does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Correlated trends of coexisting magnetism and superconductivity in optimally electron-doped oxy-pnictides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlated trends of coexisting magnetism and superconductivity in optimally electron-doped oxy-pnictides will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-686263