  Nanoscale phase separation (NPS) characterized by particular types of
correlated disorder plays an important role in the functionality of high
temperature superconductors (HTS). Our results show that multiscale
heterogeneity is an essential ingredient of quantum functionality in complex
materials. Here, the interactions developing between different structural units
cause dynamical spatiotemporal conformations with correlated disorder. Thus
visualizing conformations landscape is needed for understanding the physical
properties of complex matter and requires advanced methodologies based on high
precision X ray measurements. We discuss the dynamical correlated disorder at
nanoscale and the related functionality in oxygen doped perovskite
superconducting materials
