Fig. 6: Illustration of the emergent magnetic lattices in a bond-disordered breathing pyrochlore.

Schematics of single-A tetrahedra (orange squares) and three different B tetrahedra (green squares) created by the Ga-for-In substitution. The thick and thin green lines denote JB2 and JB1, respectively. Given the energy hierarchy of magnetic interactions JA > JB2 > JB1, the breathing pyrochlore effectively comprises coupled tetramer singlets (red shaded circle) and diluted pyrochlore lattices (blue dashed region).