Nanoscale electronic inhomogeneities are nowadays a well established feature of high-temperature superconductors, most prominently exemplified by the observation of charge-ordered states in a large number of cuprate materials. These inhomogeneities have profound consequences for the electron–phonon coupling since they allow for long-range pairing interactions due to the reduced screening supplemented by the enhancement of the electron–phonon vertex due to strong correlations. In this chapter we review the particular contribution of the Stuttgart-Tartu-Cottbus group to this field and discuss how the current status of experimental results provides affirmation to their ideas.
Bill, A., Hizhnyakov, V., & Seibold, G. (2017). Electronic phase separation and electron–phonon coupling in cuprate superconductors. Springer Series in Materials Science, 255. https://doi.org/10.1007/978-3-319-52675-1_1