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Talk Presentations:

• Ultrafast Visualization of Phase Transitions in Nonequilibrium Warm Dense Matter
  Mianzhen Mo, SLAC National Accelerator Laboratory
  Talk begins at 15:54
     
• Properties on Demand in Quantum Materials: Using External Perturbations to Control Material Properties
  Nuh Gedik, Massachusetts Institute of Technology
  Talk beings at 37:11
     
• Revealing Momentum-dependent Electron-phonon and Phonon-phonon Coupling in Complex Materials with Ultrafast Electron Diffuse Scattering
  Hermann A. Durr, Uppsala University
  Talk begins at 58:06
     

Ultrafast electron-based methods have become a major new frontier in materials science due to the capability of following dynamics on time scales as short as femtoseconds with the high spatial resolution and sensitivity afforded by electrons. In particular, these allow for explorations of material properties far from equilibrium. Imaging on ultrafast time scales carries critical information on phase transitions, fundamental processes involved in light-harvesting, magnetic, and plasmonic dynamics, the coupling of electronic and nuclear degrees of freedom in materials and has revealed previously hidden, nonequilibrium metastable states of matter that have no equilibrium analog. 

The articles in the August issue of MRS Bulletin provide an exciting cross section of the novel research directions that have been enabled at this frontier. The talks in this webinar will cover some of these topics. An interactive Q&A session and discussions will follow the presentations.

Talk Presentations:

• Ultrafast visualization of phase transitions in nonequilibrium warm dense matter
  Mianzhen Mo, SLAC National Accelerator Laboratory
  
• Properties on Demand in Quantum Materials: Using External Perturbations to Control Material Properties
  Nuh Gedik, Massachusetts Institute of Technology
  
• Revealing momentum-dependent electron–phonon and phonon–phonon coupling in complex materials with ultrafast electron diffuse scattering
  Hermann A. Dürr, Uppsala University