Fig. 1: Cubic pyrochlore structure of Tb2Ti2O7.
From: Coherent control of rare earth 4f shell wavefunctions in the quantum spin liquid Tb2Ti2O7
a Lefthand side: corner-sharing tetrahedra, formed by the Tb ions (other ions are not shown for clarity). Righthand side: Tb3+ 4f CF levels. The orange arrow indicates the transition, which was resonantly excited. b X-ray absorption measured via total fluorescence yield across the Tb L3-edge (gray in the background) and energy dependence of the orbital (028) diffraction peak (black). The inset shows the alternating orientation of the oxygen cages, which distinguish neighboring Tb sites (green). The crystal structures were visualized using the VESTA software41. Source data are provided as a Source Data file.
