activity
19992024
most citedDirect observation of optically induced transient structures in graphite using ultrafast electron crystallography

141 citations · 400 across the 14 of their papers we have counts for

collaborators

14 papers

cond-mat.mtrl-sci2024

Precision-controlled ultrafast electron microscope platforms. A case study: Multiple-order coherent phonon dynamics in 1T-TaSe probed at 50 femtosecond - 10 femtometer scales

Xiaoyi Sun, Joseph William, Sachin Sharma +4

We report on the first detailed beam test attesting the fundamental principle behind the development of high-current-efficiency ultrafast electron microscope systems where a radio-…

cond-mat.str-el2021

Toward nonthermal control of excited quantum materials: framework and investigations by ultrafast electron scattering and imaging

Xiaoyi Sun, Shuaishuai Sun, Chong-Yu Ruan

Quantum material systems upon applying ultrashort laser pulses provide a rich platform to access excited material phases and their transformations that are not entirely like their…

cond-mat.mes-hall2019★ 7 cited

Nonequilibrium dynamics of spontaneous symmetry breaking into a hidden state of charge-density wave

Faran Zhou, Joseph Williams, Christos D. Malliakas +3

Nonequilibrium phase transition plays a pivotal role in a broad physical context from condensed matter to cosmology. Tracking the formation of non-equilibrium phases in condensed m…

physics.acc-ph2017★ 18 cited

Dynamical bunching and density peaks in expanding Coulomb clouds

Brandon Zerbe, Xukun Xiang, Chong-Yu Ruan +2

Expansion dynamics of single-species, non-neutral clouds, such as electron bunches used in ultrafast electron microscopy, show novel behavior due to high acceleration of particles…

physics.chem-ph2013★ 6 cited

A brief review: Ultrafast electron diffractive voltammetry: General formalism and applications

Kiseok Chang, Ryan A. Murdick, Zhensheng Tao +2

We present a general formalism of ultrafast diffractive voltammetry approach as a contact-free tool to investigate the ultrafast surface charge dynamics in nanostructured interface…

cond-mat.mtrl-sci2013★ 14 cited

Electronically Driven Fragmentation of Silver Nanocrystals Revealed by Ultrafast Electron Crystallography

Ramani K. Raman, Ryan A. Murdick, Richard J. Worhatch +4

We report an ultrafast electron diffraction study of silver nanocrystals under surface plasmon resonance excitation, leading to a concerted fragmentation. By examining simultaneous…