Pressure dependence of electronic densities of states and superconducting transition temperatures in NiZr glasses.

Bose S.K., Kudrnovsky J., Razavi F.S., Anderson O.K.

Recent experiments on the pressure dependence of the superconducting transition temperature Tc of ZrxNi100-x glasses have revealed that the pressure derivative of Tc is positive for x greater than 60 and negative for x less than 60. In order to see whether this behavior can be explained entirely on the basis of pressure-induced changes in the electronic structure, the authors have carried out some standard linearized muffin-tin orbital (LMTO) and coherent-potential-approximation calculations. These reveal a decrease in the electronic density of states at the Fermi level for all x in the range 50 

Physical Review B, 43 110-18, 1991.

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