Sr2CuO2Cl2. Signifies an almost best case of the two-D antiferromagnetic CuO2-aircraft and so is of particular curiosity in the context in the origins of significant TC superconductivity. Now we have measured experimentally and analyzed theoretically the Ti 2p X-ray photoemission spectra (XPS) along with the resonant enhancement of valence photoemissionat https://archerdkkgg.wikipublicist.com/4929063/okada4d_can_be_fun_for_anyone