Resumen

CALAN, Claude de. Critical Behavior of High Temperature Superconductors. Braz. J. Phys. [online]. 2001, vol.31, n.2, pp. 198-202. ISSN 0103-9733.  http://dx.doi.org/10.1590/S0103-97332001000200010.

We consider the scaling behavior in the critical domain of superconductors at zero external magnetic field. The Josephson's relation for a charged superfluid is proved without assuming the hyperscaling relation. On the other hand we discuss the dual Ginzburg-Landau model. In this dual model, due to the presence of two mass scales, a continuous family of non equivalent scalings can be defined. The relevant critical regimes are identified, and the corresponding critical exponents are predicted.