Citation:
Park JT, Friemel G, Li Y, Kim J-H, Tsurkan V, Deisenhofer J, Nidda KVH-A, Loidl A, Ivanov A, Keimer B, et al. Magnetic resonant mode in the low-energy spin-excitation spectrum of superconducting Rb2Fe4Se5 single crystals. Physical Review Letters. 2011;(17).