Physics Spring Colloquium- Carrier and spin dynamics monitored by attosecond X-ray pulses

Dr. Micheal Zuerch, University of California at Berkeley

Abstract: Novel materials with by-design properties that can be grown down to the two-dimensional limit are considered important candidates for addressing computation and energy challenges of the twenty-first century. For instance, band gaps by design and enhanced transport properties give prospects for highly efficient solar energy conversion and low-loss optoelectronics and memories. The complexity of available materials and combinations, however, renders it challenging to predict related properties. Attosecond pulses spanning photon energies of tens of electron volts in the extreme ultraviolet and soft X-ray range are a unique tool to spectroscopically study out-of-equilibrium dynamics with atomic specificity. In our lab we extend this approach by combining attosecond spectroscopy with attosecond diffraction as multimodal probe for correlated dynamics in solid state materials for which I will present first measurements on magnetic materials and discuss future directions. 
 
 
** Refreshments served from 2:45pm – 3:00pm in PAS 218.  Thank you. ** 

When

3 p.m. to 4 p.m. Feb. 14, 2020

Where

PAS 224

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