Spectroscopic evidence for polarons in partially occupied spin-orbit states of YBa2Cu3O7

J. V. Acrivos, L. Nguyen, H. S. Sahibudeen +2

The spin-orbit split white line, synchrotron X-ray spectra at the respective Cu and Ba L2,3 and Ba M4,5 edges in YBa2Cu3O7 crystal, powders, films and derivatives are compared to t…