May 2014 Journal Article Crossover from spin waves to diffusive spin excitations in underdoped Ba(Fe 1-x Co x ) 2 As 2 DOI Link https://doi.org/http://dx.doi.org/10.1103/PhysRevB.89.180503 Authors Tucker G.S., Fernandes R.M., Pratt D.K., Thaler A., Ni N., Marty K., Christianson A.D., Lumsden M.D., Sales B.C., Sefat A.S., Bud'ko S.L., Canfield P.C., Kreyssig A., Goldman A.I., McQueeney R.J. Publication Physical Review B Pages 180503 Volume 89 Publish Date May 2014 Instruments TAX | HB-3 | HFIR