Structural properties of TmFeO₃ in the spontaneous reorientation region

X-ray studies of TmFeO3 single crystals in the spontaneous spin-reorientation region demonstrate the absence of lattice distortions and no lowering of the symmetry of the crystal from rhombic to monoclinic and thus confirm the purely magnetic nature of the Γ2- Γ24-Γ4 spin reorientation in orthoferrites. © 2006 American Institute of Physics.