Anti-Stokes resonant x-ray Raman scattering for atom specific and excited state selective dynamics

Kristjan Kunnus, Ida Josefsson, Ivan Rajkovic, Simon Schreck, Wilson Quevedo, Martin Beye, Sebastian Grübel, Mirko Scholz, Dennis Nordlund, Wenkai Zhang, Robert W. Hartsock, Kelly J. Gaffney, William F. Schlotter, Joshua J. Turner, Brian Kennedy, Franz Hennies, Simone Techert, Philippe Wernet, Michael Odelius, Alexander Föhlisch

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

13 Citeringar (SciVal)

Sammanfattning

Ultrafast electronic and structural dynamics of matter govern rate and selectivity of chemical reactions, as well as phase transitions and efficient switching in functional materials. Since x-rays determine electronic and structural properties with elemental, chemical, orbital and magnetic selectivity, short pulse x-ray sources have become central enablers of ultrafast science. Despite of these strengths, ultrafast x-rays have been poor at picking up excited state moieties from the unexcited ones. With time-resolved anti-Stokes resonant x-ray Raman scattering (AS-RXRS) performed at the LCLS, and ab initio theory we establish background free excited state selectivity in addition to the elemental, chemical, orbital and magnetic selectivity of x-rays. This unparalleled selectivity extracts low concentration excited state species along the pathway of photo induced ligand exchange of Fe(CO)5 in ethanol. Conceptually a full theoretical treatment of all accessible insights to excited state dynamics with AS-RXRS with transform-limited x-ray pulses is given - which will be covered experimentally by upcoming transform-limited x-ray sources.

Originalspråkengelska
Artikelnummer103011
TidskriftNew Journal of Physics
Volym18
Utgåva10
DOI
StatusPublished - 2016 okt 1

Ämnesklassifikation (UKÄ)

  • Acceleratorfysik och instrumentering

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