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BEGIN:VEVENT
UID:DSC-23049
DTSTART;TZID=Europe/Berlin:20260804T110000
SEQUENCE:1785821739
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260804T120000
URL:https://dresden-science-calendar.de/calendar/de/detail/23049
LOCATION:IFW\, Helmholtzstraße 2001069 Dresden
SUMMARY:Datta: Theory of resonant inelastic x-ray scattering     on angular
  momentum carrying phonons
CLASS:PUBLIC
DESCRIPTION:Speaker: Prof. Dr. Trinanjan Datta\nInstitute of Speaker: Augus
 ta University\, Department of Physics and Biophysics\nTopics:\n\n Location
 :\n  Name: IFW (D2E.27\, IFW Dresden)\n  Street: Helmholtzstraße 20\n  Ci
 ty: 01069 Dresden\n  Phone: \n  Fax: \nDescription: Chirality has wide ran
 ging implications from biology to cosmology including an intimate but subt
 le connection to condensed matter physics. The study of chirality in quant
 um materials can be bolstered by utilizing resonant inelastic x-ray scatte
 ring (RIXS) spectroscopy. In a typical RIXS process\, the energy of the in
 coming x-ray photon is resonantly tuned to match an element absorption edg
 e\, thus generating a large enhancement of the scattered intensity. As the
  incident radiation loses its energy and momentum to excitations inherent 
 to the material\, direct information on the dispersions of charge\, spin\,
  orbital\, lattice\, and other degrees of freedom such as angular momentum
  and chirality can be obtained. In this talk\, I will present a recently d
 eveloped microscopic theory of photon-phonon angular momentum transfer wit
 hin the context of RIXS. I will present both the local plaquette and the a
 ngular momentum-dependent RIXS formalism. I will utilize the triangular la
 ttice and a single helical strand to demonstrate that RIXS spectroscopy is
  capable of measuring circularly polarized phonon angular momentum in both
  two- and three- dimensional materials.  .
DTSTAMP:20260924T085534Z
CREATED:20260722T053715Z
LAST-MODIFIED:20260804T053539Z
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