Fig. 2: Maps showing the variation in the intensity of the magnetic satellites and azimuthal dependencies collected on EuAl4 in the AFM1 phase, together with the resonant elastic X-ray experimental setup used to collect the data.
From: Spontaneous reversal of spin chirality and competing phases in the topological magnet EuAl4
a A schematic diagram of the REXS experimental setup used to collect the maps shown in (b, c). Also shown is the azimuthal angle Ψ for a specular reflection, i.e the (0,0,8) reflection, which is given by the red circular arrow. The variation in intensity of the (b) \({{{\boldsymbol{k}}}}_{{qq}}\) and (c) \({{{\boldsymbol{k}}}}_{q\bar{q}}\) magnetic satellites of the (0,0,8) reflection taken as the beam was translated across the sample at 13.7 K in the AFM1 phase. d The scattered intensity from the \({{{\boldsymbol{k}}}}_{{qq}}\) magnetic satellite of the (0,0,8) reflection as a function of azimuth collected with incident σ, circular right (⟳) and circular left (⟲) polarised light in the AFM1 phase. The markers represent the normalised data, and the lines represent the fitted azimuthal dependencies using a SDW with m|| \(a\bar{b}\).
