Nuclear magnetic resonance of '17O and 63Cu in oriented YBa2Cu3O7-x
Ioon E. , Kheinmaa I. , Miller A., Mildel' V., Viya S. , Lippma E.
The NMR data have shown that there are carriers at the oxygen orbitals, that these carriers are paired at T< Τ*/~ 80 К, and that copper and oxygen electron subsystems are independent subsystems.