5 papers
X-ray Driven Trihydrogen Formation on Silica Nanosurfaces
Samuel Sahel-Schackis, Adam Summers, Ritika Dagar +29
The trihydrogen cation () initiates the ion-molecule reactions that build molecular complexity in interstellar space. Whether its canonical formation reaction, $\ma…
Elucidating Norrish Type-I reactive pathways by ultrafast X-ray absorption spectroscopy
Martin Graßl, Pablo Unzueta, Andreas E. Hillers-Bendtsen +20
Norrish type I reactions selectively cleave carbon-carbon bonds directly adjacent to carbonyl groups. Despite their broad use in combination with aromatic carbonyls for additive ma…
Nonlinear reversal of photo-excitation on the attosecond time scale improves ultrafast x-ray diffraction images
Anatoli Ulmer, Phay J. Ho, Bruno Langbehn +28
The advent of isolated and intense sub-femtosecond X-ray pulses enables tracking of quantummechanical motion of electrons in molecules and solids. The combination of X-ray spectros…
Design and Performance of a Magnetic Bottle Electron Spectrometer for High-Energy Photoelectron Spectroscopy
Kurtis Borne, Jordan T ONeal, Jun Wang +19
We describe the design and performance of a magnetic bottle electron spectrometer~(MBES) for high-energy electron spectroscopy. Our design features a ~m long electron drif…
Catalysis in Extreme Field Environments: The Case of Strongly Ionized Nanoparticle Surfaces
Thomas M. Linker, Ritika Dagar, Alexandra Feinberg +8
High electric fields can significantly alter catalytic environments and the resultant chemical processes. Such fields arise naturally in biological systems but can also be artifici…