SciELO - Scientific Electronic Library Online

vol.33 issue4Distinguishing models for the pseudo-gap in cuprate superconductors by probing the spatial distribution of impurity statesLocal superconductivity and ferromagnetism interplay in graphite-sulfur composites author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Brazilian Journal of Physics

Print version ISSN 0103-9733On-line version ISSN 1678-4448


GONZALEZ, J.L.; CAIXEIRO, E.S.  and  MELLO, E.V.L. de. Unconventional magnetic properties of cuprates. Braz. J. Phys. [online]. 2003, vol.33, n.4, pp.758-761. ISSN 0103-9733.

Recently experiments on high critical temperature superconductors have shown that the doping levels and the superconducting gap are usually not uniform properties but strongly dependent on their positions inside a given sample. We show here that the large diamagnetic signal above the critical temperature Tc and the unusual temperature dependence of the upper critical field Hc2 with the temperature can be explained taking the inomo-geneities and a distribution of different local critical temperatures into account.

        · text in English     · English ( pdf epdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License