First-Order Transition between Weak and Strong Pinning in Clean Superconductors 
with Enhanced Spin Susceptibility

Modler, R.; Gegenwart, P.; Lang, M.; Deppe, M.; Weiden, M.; Lühmann, T.; Geibel, C.; Steglich, F.; Paulsen, C.; Tholence, J. L.; Sato, N.; Komatsubara, T.; Ōnuki, Y.; Tachiki, M.; Takahashi, S.

doi:10.1103/PhysRevLett.76.1292

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First-Order Transition between Weak and Strong Pinning in Clean Superconductors with Enhanced Spin Susceptibility

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Citation

Modler, R., Gegenwart, P., Lang, M., Deppe, M., Weiden, M., Lühmann, T., et al. (1996). First-Order Transition between Weak and Strong Pinning in Clean Superconductors with Enhanced Spin Susceptibility. Physical Review Letters, 76(8), 1292-1295. doi:10.1103/PhysRevLett.76.1292.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-E797-B

Abstract

Dilatometric and magnetic experiments on high-quality single crystals of the superconducting compounds UPd2Al3 and CeRu2, which have enhanced spin susceptibilities, demonstrate a first-order transition between weak and strong pinning at T < 0.9T(c) (H > 10 kOe). This is compatible with a staggered order parameter due to the formation of a ''Fulde-Ferrell-Larkin-Ovchinnikov'' state.