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Pair breaking effects in heavy fermion superconductors

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Citation

Van Aken, P., De Boer, F. R., Spille, H., Winkelmann, M., Ahlheim, U., Bredl, C. D., et al. (1988). Pair breaking effects in heavy fermion superconductors. Physica C, 153, 449-450. doi:10.1016/0921-4534(88)90677-6.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-D4AB-9
Abstract
Non-magnetic La and Y impurities in CeCu2.2Si2 give rise to a “diamagnetic” pair-breaking effect and, in addition, Gd causes “paramagnetic” pair breaking. In dilute (0 < × ≦ 5at%) Ce1-xLaxCu2.2Si2 alloys an “alloying-induced depression of incoherent scattering” is observed and related to the formation of antiferromagnetic order at several K.