Ab initio electron dynamics: from stopping power to non-linear conductivity of materials

DIPC Seminars

Speaker: Alfredo A. Correa, Lawrence Livermore National Laboratory
When: 2017/07/05
14:00
Place: Donostia International Physics Center
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Ab initio electron dynamics: from stopping power to non-linear conductivity of materials

Real-time Time dependent density functional theory gives us access to detailed evolution of quantum electronic system, both in the linear and the non-linear regime. As the power and scale of TDDFT computer simulations grows, new phenomena can be captured and studied by this technique. In this talk, we present a new method and simulation results regarding materials undergoing particle radiation and its relationship to the optical response and conductivity. We obtain that there is a minimum of the DC-electrical conductivity as a function of current in a disordered metallic system and present a model that can explain these simulation results.