In this work we report on systematic field-cooled magnetization experiments in melt-textured
samples containing Y211 precipitates. Magnetic fields up to 14 T were applied
either parallel or perpendicular to the ab planes and a strong paramagnetic response related to the
superconducting state was observed. This effect is known as paramagnetic Meissner effect (PME).
The magnitude of the PME increases when the field is augmented. This effect shows a strong
paramagnetic relaxation, such that the paramagnetic moment increases as a function of the time.
The pinning by the Y211 particles plays a crucial role in the explanation of this effect and our
results suggest that the pinning capacity can produce a strong flux compression into the sample,
originating the PME and the strong time dependence
CitacióGouvêa, C.P. [et al.]. Paramagnetic meissner effect and strong time dependence at high fields in melt-textured high-Tc superconductors. "Journal of the Korean Physical Society", Maig 2013, vol. 62, núm. 10, p. 1414-1417.