30 citations · 104 across the 27 of their papers we have counts for
13 papers · 1 filter
TEM Agent: enhancing transmission electron microscopy (TEM) with modern AI tools
Morgan K. Wall, Alexander J. Pattison, Edward S. Barnard +2
Recent improvements in large language models (LLMs) have had a dramatic effect on capabilities and productivity across many disciplines involving critical thinking and writing. The…
Deep generative priors for robust and efficient electron ptychography
Arthur R. C. McCray, Stephanie M. Ribet, Georgios Varnavides +1
Electron ptychography enables dose-efficient atomic-resolution imaging, but conventional reconstruction algorithms suffer from noise sensitivity, slow convergence, and extensive ma…
New avenues for characterizing individual mineralized collagen fibrils with transmission electron microscopy
Tatiana Kochetkova, Stephanie M. Ribet, Lilian M. Vogl +5
Bone serves as a remarkable example of nature's architectured material with its unique blend of strength and toughness, all at a lightweight design. Given the hierarchical nature o…
Programmable Beam Control for Electron Energy-Loss Spectroscopy and Ptychography
Mariana Palos, Liam Spillane, Geri Topore +5
Programmable electron-beam scanning offers new opportunities to improve dose efficiency and suppress scan-induced artifacts in scanning transmission electron microscopy. Here, we s…
High-current p-type transistors from precursor-engineered synthetic monolayer WSe
Anh Tuan Hoang, Kathryn Neilson, Kaikui Xu +11
Monolayer tungsten diselenide (WSe) is a leading candidate for nanoscale complementary logic. However, high defect densities introduced during thin-film growth and device fabri…
Beyond Contrast Transfer: Spectral SNR as a Dose-Aware Metric for STEM Phase Retrieval
Georgios Varnavides, Julie Marie Bekkevold, Stephanie M Ribet +3
The contrast transfer function (CTF) is widely used to evaluate phase retrieval methods in scanning transmission electron microscopy (STEM), including center-of-mass imaging, paral…
Relaxing Direct Ptychography Sampling Requirements via Parallax Imaging Insights
Georgios Varnavides, Julie Marie Bekkevold, Stephanie M Ribet +3
Direct ptychography enables the retrieval of information encoded in the phase of an electron wave passing through a thin sample by deconvolving the interference effects of a conver…
Quantitative structure determination from experimental four-dimensional scanning transmission electron microscopy via the scattering matrix
Emmanuel W. C. Terzoudis-Lumsden, Alireza Sadri, Matthew Weyland +6
Considerable inroads have recently been made on algorithms to determine the sample potential from four-dimensional scanning transmission electron microscopy data from thick samples…
Multi-angle precession electron diffraction (MAPED): a versatile approach to 4D-STEM precession
Stephanie M. Ribet, Rohan Dhall, Colin Ophus +1
Precession of a converged beam during acquisition of a 4D-STEM dataset improves strain, orientation, and phase mapping accuracy by averaging over continuous angles of illumination.…
Fabrication and characterization of boron-terminated tetravacancies in monolayer hBN using STEM, EELS and electron ptychography
Dana O. Byrne, Stephanie M. Ribet, Demie Kepaptsoglou +3
Tetravacancies in monolayer hexagonal boron nitride (hBN) with consistent edge termination (boron or nitrogen) form triangular nanopores with electrostatic potentials that can be l…
PhaseT3M: 3D Imaging at 1.6 Å Resolution via Electron Cryo-Tomography with Nonlinear Phase Retrieval
Juhyeok Lee, Samuel W. Song, Min Gee Cho +5
Electron cryo-tomography (cryo-ET) enables 3D imaging of complex, radiation-sensitive structures with molecular detail. However, image contrast from the interference of scattered e…
Mapping strain and structural heterogeneities around bubbles in amorphous ionically conductive BiO
Ellis Rae Kennedy, Stephanie M. Ribet, Ian S. Winter +5
While amorphous materials are often approximated to have a statistically homogeneous atomic structure, they frequently exhibit localized structural heterogeneity that challenges si…
Neutral but Impactful: Gallium Cluster-Induced Nanopores from Beam-Blanked Gallium Ion Sources
Dana O. Byrne, Stephanie M. Ribet, Karen C. Bustillo +2
Neutral atoms emitted from liquid metal ion sources are an often-overlooked source of contamination and damage in focused ion beam microscopy. Beyond ions and single atoms, these s…