Anomaly in the conductivity of shock-compressed nickel at a pressure of ∼23 GPa

In the pressure range 14–35 GPa we have measured the resistance of shock-compressed nickel. Its abrupt decrease at; ∼23 GPa is noted, and the boundaries of the existence of this anomaly (±1 GPa) are determined. It is shown that the observed anomaly can be linked with a structural rearrangement of the electron shells of nickel. Fiz. Tverd. Tela (St. Petersburg) 41, 369–371 (March 1999)