Three-dimensional mapping of charge ordering in Cobalt Oxyborate

In this proposal, we will study a rich phase transition environment, namely, the cobalt oxyborate, that previous experiments suggests both spin and charge ordering. Using Bragg Coherent Diffraction Imaging (BCDI) on the superstructure diffraction peak that appears in the 475 K to 600 K temperature range we aim to spatially resolve the origin of the charge ordering in a Cobalt Oxyborate. Is this somehow related to defects on the crystal? Additionally, we want to investigate whether this superstructure appears homogeneously throughout the entire crystal or if there are islands of charge-ordered states. This experiment will be useful for understanding the underlying mechanisms of charge ordering and designing new quantum materials with desired properties.