Instabilities in heavy-fermion systems

Steglich, F.; Ahlheim, U.; Bredl, C. D.; Geibel, C.; Grauel, A.; Lang, M.; Sparn, G.; Krimmell, A.; Loidl, A.; Assmus, W.

doi:10.1016/0304-8853(92)91331-M

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Instabilities in heavy-fermion systems

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Steglich, F., Ahlheim, U., Bredl, C. D., Geibel, C., Grauel, A., Lang, M., et al. (1992). Instabilities in heavy-fermion systems. Journal of Magnetism and Magnetic Materials, 108(1-3), 5-9. doi:10.1016/0304-8853(92)91331-M.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-D714-3

Abstract

We review (i) an itinerant antiferromagnetic phase transition below 4 K in Ni-rich Ce(Cu1-xNix)2Ge2 systems, (ii) the coincidence at T = 0.63 K of both a structural lattice instability in "as-grown" (non-superconducting) CeCu2Si2 single crystals and bulk superconductivity in annealed ones as well as (iii) antiferromagnetic and superconducting transitions at T(N) = 4.6 K and T(c) = 1 K, respectively, in the heavy-fermion compound UNi2Al3.