Abstract
CeCu2Si2 single crystals prepared with an excess of Cu exhibit low residual resistivity 0, low susceptibility , small unit-cell volume V, and bulk "heavy-fermion" superconductivity below 0.65 K, while crystals grown from stoichiometric melt show higher and, larger V, but no superconductivity. CeCu2Si2 behaves as an s-state superconductor with strongly temperature- dependent pair breaking and almost isotropic Fermi surface. © 1984 The American Physical Society.
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CITATION STYLE
Assmus, W., Herrmann, M., Rauchschwalbe, U., Riegel, S., Lieke, W., Spille, H., … Cordier, G. (1984). Superconductivity in CeCu2Si2 single crystals. Physical Review Letters, 52(6), 469–472. https://doi.org/10.1103/PhysRevLett.52.469
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