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cond-mat.supr-con1997
Low-Temperature Phase Transition in Bi_2Sr_2Ca(Ni_xCu_{1-x})_20_8: Evidence for Unconventional Superconductivity
R. Movshovich, M. A. Hubbard, M. B. Salamon +3
We report the discovery of a low-temperature phase transition in Bi_2Sr_2Ca(Ni_xCu_{1-x})_20_8 high temperature superconductor. This transition manifests itself as a sharp reductio…
cond-mat.supr-con1997★ 39 cited
On the Lifshitz tail in the density of states of a superconductor with magnetic impurities
A. V. Balatsky, S. A. Trugman
We argue that any superconductor with magnetic impurities is gapless due to a Lifshitz tail in the density of states extending to zero energy. At low energy the density of states $…