Localized magnetic centers in the compound
![YBa_2Cu_3O_{6+x}(x\leq1)](/img/latex/52/52b0caa60808c713f54e5d52faa6aad0-v2.png)
Ivanov M. A., Loktev V. M., Pogorelov Yu. G.
A model is proposed for the electronic processes which occur as the basal planes in a 1-2-3 high-!Tc compound become filled with oxygen. An ionic structure is proposed for these planes. Localized magnetic moments form in the insulating phase of this compound. They exhibit a paramagnetic behavior, without an ESR signal.