160 citations · 1.2k across the 38 of their papers we have counts for
6 papers · 1 filter
Triply degenerate nodal points in RERhGe (RE=Y, La, Lu)
Peng-Jie Guo, Huan-Cheng Yang, Kai Liu +1
As a new type of fermions without counterpart in high energy physics, triply degenerate fermions show exotic physical properties, which are represented by triply degenerate nodal p…
Direct Measurement of Anharmonic Decay Channels of a Coherent Phonon
Samuel W. Teitelbaum, Tom Henighan, Yijing Huang +12
We observe anharmonic decay of the photoexcited coherent A1g phonon in bismuth to points in the Brillouin zone where conservation of momentum and energy are satisfied for three-pho…
Non-equilibrium phase precursors to the insulator-metal transition in V2O3
Andrej Singer, Juan Gabriel Ramirez, Ilya Valmianski +11
The discovery of novel phases of matter is at the core of modern physics. In quantum materials, subtle variations in atomic-scale interactions can induce dramatic changes in macros…
Diffraction based Hanbury Brown and Twiss interferometry performed at a hard x-ray free-electron laser
O. Yu. Gorobtsov, N. Mukharamova, S. Lazarev +13
We demonstrate experimentally Hanbury Brown and Twiss (HBT) interferometry at a hard X-ray Free Electron Laser (XFEL) on a sample diffraction patterns. This is different from the t…
Optimal pulse processing, pile-up decomposition and applications of silicon drift detectors at LCLS
G. Blaj, C. J. Kenney, A. Dragone +15
Silicon drift detectors (SDDs) revolutionized spectroscopy in fields as diverse as geology and dentistry. For a subset of experiments at ultra-fast, x-ray free-electron lasers (FEL…
Ultrafast x-ray diffraction probe of terahertz field-driven soft mode dynamics
M. Kozina, T. van Driel, M. Chollet +6
We use ultrafast x-ray pulses to characterize the lattice response of SrTiO3 when driven by strong terahertz (THz) fields. We observe transient changes in the diffraction intensity…