**Author details**

**Figure 16.** Correlation between δTc = Tc

**Figure 15.** Correlation between psh and Tc

142 Superfluids and Superconductors

**Figure 17.** Correlation between δTc

SrBaCu<sup>3</sup>

O6+z.

[AO] − Tc

[O] and δε = ε[AO] − ε[O] as a function of x and heat treatment of (Y1−xSmx

)SrBaCu<sup>3</sup>

O6+z.

)SrBaCu<sup>3</sup>

O6+z.

and δK′ as a function of x and heat treatment of (Y1−xSmx

as a function of x and heat treatment of (Y1−xSmx

)

Abdelhakim Nafidi

Address all correspondence to: nafidi21@yahoo.fr

Laboratory of Condensed Matter Physics and Nanomaterials for Renewable Energy, University Ibn Zohr, Agadir, Morocco
