@article{e13cc979539142a2be942ec350071c97,
title = "Persistence of slow fluctuations in the overdoped regime of Ba(Fe1-xRhx)2As2 superconductors",
abstract = "We present nuclear magnetic resonance evidence that very slow (≤1 MHz) spin fluctuations persist into the overdoped regime of Ba(Fe1-xRhx)2As2 superconductors. Measurements of the As75 spin echo decay rate, obtained both with Hahn Echo and Carr Purcell Meiboom Gill pulse sequences, show that the slowing down of spin fluctuations can be described by short-range diffusive dynamics, likely involving domain walls motions separating (π/a,0) from (0,π/a) correlated regions. This slowing down of the fluctuations is weakly sensitive to the external magnetic field and, although fading away with doping, it extends deeply into the overdoped regime.",
author = "L. Bossoni and M. Moroni and Julien, {M. H.} and H. Mayaffre and Canfield, {P. C.} and A. Reyes and Halperin, {W. P.} and P. Carretta",
note = "Funding Information: R. Fernandes, Y. Gallais, and R. Zhou are thanked for useful discussions. We acknowledge Mladen Horvati for technical assistance and useful discussion. Jelmer Wagenaar, Martin de Wit, and Tjerk Oosterkamp are thanked for critical revision of the manuscript. Work done at Ames Laboratory (P.C.C.) and Northwestern University (W.P.H.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering (at Northwestern University, Award No. DE-FG02-05ER46248). The research was performed at the Ames Laboratory. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE- AC02-07CH11358. This work was supported by MIUR- PRIN2012 Project No. 2012X3YFZ2. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",
year = "2016",
month = jun,
day = "23",
doi = "10.1103/PhysRevB.93.224517",
language = "English (US)",
volume = "93",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics",
number = "22",
}