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

Lühmann, T.; Gegenwart, P.; Reinders, P. H. P.; Geibel, C.; Steglich, F.; Paulsen, C.; Tholence, J. L.

doi:10.1016/0921-4534(94)92437-6

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Anomalous pinning near H_c2 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 H_c2 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: https://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.