Seminarium: Time-Resolved Diffraction Studies of Structural Dynamics in Solids

  • Datum:
  • Plats: Ångströmlaboratoriet Ång/4006
  • Föreläsare: Dr. Xiaocui Wang, Lunds universitet
  • Kontaktperson: Hermann Dürr
  • Seminarium

Studies of the structural dynamics of solids improves the understanding of atomic motion in materials. Ultrashort laser pulses, can deliver high energies to the electronic system in a solid material, leading to a rapid increase in the electron temperature within the duration of the laser pulse. The energy will then be transferred to the crystal lattice, resulting in an increase in the lattice temperature, which triggers lattice motion such as vibrations (phonons) and disordering (melting of solids). The structural dynamics in solids can then be monitored as a function of time by combining ultrashort laser pulses with X-ray techniques. During my PhD, I focused on the structural dynamics of solids on the time scale of femtoseconds to picoseconds. In this talk, I will present the main results that are included in my thesis.