Speaker
Description
Since the discovery of high temperature superconductivity in the
cuprates, this class of materials has been heavily investigated. However,
even after 30 years of research, the mechanisms that lead to their unique
behaviours are still not fully understood. Much focus has been given to their
electronic structure. Since these materials exhibit strong electron
correlations, density-functional-theory (DFT) has been considered too
simplistic. Recently, we succeeded to resolve both the $d_{x^2-y^2}$ and d$_{z^2}$ bands in La-based cuprates directly with angle-resolved photoemission spectroscopy
(ARPES)[1]. On this poster, a comprehensive ARPES study across single layer
hole-doped cuprates is given and it will be demonstrated how standard DFT
calculations describe qualitatively the electronic structure of overdoped
cuprates.
[1]C.Matt et al.,Nature Communications 9,972(2018)