Neutron Scattering Measurements of Spatially Anisotropic Magnetic Exchange Interactions in Semiconducting K0.85Fe1.54Se2 (TN=280 K)

Jun Zhao, Yao Shen, R. J. Birgeneau +7

We use neutron scattering to study the spin excitations associated with the stripe antiferromagnetic (AFM) order in semiconducting K${}_{0.85}$Fe${}_{1.54}$Se${}_2$ ($T_N$=$280$ K). We s…