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Anomalous pinning near Hc2 in the heavy fermion superconductor UPd2Al3 studied by magnetic measurements

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Citation

Lühmann, T., Gegenwart, P., Reinders, P. H. P., Geibel, C., Steglich, F., Paulsen, C., et al. (1994). Anomalous pinning near Hc2 in the heavy fermion superconductor UPd2Al3 studied by magnetic measurements. Physica C-Superconductivity and its Applications, 235, 2433-2434. doi:10.1016/0921-4534(94)92437-6.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-E511-9
Abstract
Magnetic measurements were performed on single crystalline UPd2Al3 samples. Slightly below H-c2 an anomaly has been observed, which indicates a sudden change from weak to strong pinning of the flux vortices. We discuss possible explanations, e.g. the formation of a spatially modulated superconducting (,,Fulde-Ferrell'') state, and compare our results with similar ones in CeRu2.