Fig. 1
The structure of h-(Lu, Sc)FeO3. (a) Crystallographic structure of h-(Lu, Sc)FeO3 in P63cm space group. Yellow balls indicate Lu or Sc atoms, while grey and blue balls stand for Fe and O atoms respectively. The black arrows show the displacement directions of Lu or Sc atoms with a two-down/one-up case. Trimerized Fe atoms are illustrated with green bonds. (b) 3D magnetic structure of h-(Lu, Sc)FeO3 in A2 phase, which enables the spin canting along the c axis. Ordered Fe spins in two adjacent layers are shown with red open arrows, and the Fe trimerization of Z = 0 layer is labeled with green bonds. (c) X-ray diffraction of the Lu0.6Sc0.4FeO3 single crystal ground powders which shows the pure hexagonal phase in P63cm space group. The refinement was done by Reitica with the simulated lattice constant a = 5.879 Å and c = 11.695 Å, the standard deviation Rp = 6.851, Rwp = 10.62 and χ2 = 0.514. (d) Optical microscope image of a cleaved Lu0.6Sc0.4FeO3 surface (LSFO1). Scale bar is 200 μm. The image of the whole crystal before cleaving is shown in the inset
