Vz. Kresin et al., MAGNETIC SCATTERING IN THE CUPRATES - UPPER LIMIT OF T-C, NOVEL ISOTOPE EFFECTS, Journal of superconductivity, 10(4), 1997, pp. 267-272
The pair-breaking effect caused by magnetic scattering makes a strong
impact on the properties of cuprates. The study of magnetic properties
allows one to introduce a new parameter, the intrinsic T-c, which is
the upper limit of T-c in these materials: T-c,T-upp = 160-170 K. In a
ddition, the presence of magnetic impurities leads to the unconvention
al isotope effect observed experimentally.