Electrical conductivity of Sn at high pressure and temperature

Temperature and conductivity at high pressure-temperature conditions are yet to be fully understood. We discuss recent electrical conductivity results, and the effect of skin depth, under dynamic loading conditions. Consideration of the skin depth has been neglected in previous dynamic electrical conductivity studies; by using much thinner  films and  improving signal-to-noise we are able  to address this issue. These improvements enabled  us to observe the conductivity changes related to solid-to-solid and solid-to-liquid phase transitions in Sn. We also discuss the relevance of the Wiedemann-Franz law to our experiments and compare against thermal transport dependent temperature measurements from previous work.

 This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.