Da Silva, E. Z.Salem-Sugui, S. [UNESP]2014-05-272014-05-271996-01-20Physica C: Superconductivity and its Applications, v. 257, n. 1-2, p. 173-178, 1996.0921-4534http://hdl.handle.net/11449/64737Measurements of magnetization in YBa2Cu3O7-δ single crystals were performed for applied fields H parallel and perpendicular to the ab planes. The data show a temperature T = T* at which the magnetization M(T*) is independent of the applied field. This result is interpreted as due to vortex fluctuations of an anisotropic 3-D superconductor.173-178engAnisotropyMagnetic field effectsMagnetic variables measurementMagnetizationOxide superconductorsSingle crystalsThermal effectsYttrium compoundsSuperconducting vortex fluctuationsYttrium barium copper oxideHigh temperature superconductorsArtigo10.1016/0921-4534(95)00686-9Acesso restrito2-s2.0-0029732089