Hidden phonon highways promote photoinduced interlayer energy transfer in twisted transition metal dichalcogenide heterostructures

AC Johnson, JD Georgaras, X Shen, H Yao… - Science …, 2024‏ - science.org
Vertically stacked van der Waals (vdW) heterostructures exhibit unique electronic, optical,
and thermal properties that can be manipulated by twist-angle engineering. However, the …

[HTML][HTML] High-repetition-rate ultrafast electron diffraction with direct electron detection

FR Diaz, M Mero, K Amini - Structural Dynamics, 2024‏ - pubs.aip.org
Ultrafast electron diffraction (UED) instruments typically operate at kHz or lower repetition
rates and rely on indirect detection of electrons. However, these experiments encounter …

Stability and Electronic Properties of K‐Sb and Na‐Sb Binary Crystals from High‐Throughput Ab Initio Calculations

R Schier, D Guo, HD Saßnick… - Advanced Theory and …, 2024‏ - Wiley Online Library
The study of the fundamental properties of alkali antimonide photocathodes for particle
accelerators is currently hindered by the limited purity of the samples. First‐principles …

A cryogenically cooled 200 kV DC photoemission electron gun for ultralow emittance photocathodes

G Gevorkyan, C Sarabia-Cardenas… - Review of Scientific …, 2023‏ - pubs.aip.org
Novel photocathode materials like ordered surfaces of single crystal metals, epitaxially
grown high quantum efficiency thin films, and topologically non-trivial materials with dirac …

Photoinduced twist and untwist of moir\'{e} superlattices in TMDC heterobilayers

CJR Duncan, AC Johnson, I Maity, A Rubio… - arxiv preprint arxiv …, 2025‏ - arxiv.org
Two-dimensional twisted bilayer moir\'e structures provide a versatile material platform for
realizing a rich variety of strongly correlated electronic quantum phases intricately coupled …

Shot-to-shot acquisition ultrafast electron diffraction

R Claude, M Puppin, B Weaver, P Usai… - arxiv preprint arxiv …, 2025‏ - arxiv.org
We demonstrate a novel shot-to-shot acquisition method for optical pump-keV electron
energy probe in ultrafast scattering experiments. We integrate a phase-locked acquisition …