Abstract
Simple (CuO2, CuO) and complex superconducting (YBa2Cu3O7-x, La2-xSrxCuO4) copper oxides have been investigated by 61Cu(61Ni) emission Mossbauer spectroscopy. A linear relationship between the quadrupole coupling constant for 61Ni and the calculated lattice electric field gradients is established, and the contribution of the Ni2+ valence electrons to the coupling constant is determined. Magnetic fields are observed at 61Ni nuclei in those cases when the copper sublattice shows magnetic ordering.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call