114 citations · 252 across the 13 of their papers we have counts for
13 papers
A versatile generalized digital twin for Electron Microscopy
Thomas W. Pfeifer, Andrew R. Lupini, Eric R. Hoglund
Novel experiments in transmission electron microscopy often require the development of specialized imaging and spectroscopy states, such as for flexible momentum-resolved high ener…
Reexamining the strange metal charge response with transmission inelastic electron scattering
Niels de Vries, Eric Hoglund, Dipanjan Chaudhuri +8
The strange metal remains one of the great unsolved problems for 21st century science. Since the early development of the marginal Fermi liquid phenomenology, it has been clear tha…
PySlice: Routine Vibrational Electron Energy Loss Spectroscopy Prediction with Universal Interatomic Potentials
Harrison A. Walker, Thomas W. Pfeifer, Paul M. Zeiger +3
Vibrational spectroscopy in the electron microscope can reveal phonon excitations with nanometer spatial resolution, yet routine prediction remains out of reach due to fragmented w…
Designing heterostructures to control oxygen stoichiometry in helimagnetic perovskite strontium ferrite
Jennifer Fowlie, Bernat Mundet, Danilo Puggioni +10
A large challenge in determining the physics of helimagnetic SrFeO3 is in stabilizing the stoichiometric chemical phase over long enough time scales to conduct extensive measuremen…
Topology-Driven Vibrations in a Chiral Polar Vortex Lattice
Eric R. Hoglund, Harrison A. Walker, Peter Meisenheimer +13
The ordering of magnetic or electric dipoles leading to real-space topological structures is at the forefront of materials research as their quantum mechanical nature often lends i…
Comparative analysis of plasmon modes in layered Lindhard metals and strange metals
Niels de Vries, Jin Chen, Eric Hoglund +4
The enigmatic strange metal remains one of the central unsolved problems of 21st century science. Understanding this phase of matter requires knowledge of the momentum- and energy-…
Phonon selection and interference in momentum-resolved electron energy loss spectroscopy
Thomas W. Pfeifer, Harrison A. Walker, Henry T. Aller +5
As momentum-resolved Electron Energy Loss Spectroscopy (q-EELS) becomes more widely used for phonon measurements, better understanding of the intricacies of the acquired signal is…
Ruddlesden-Popper chalcogenides push the limit of mechanical stiffness and glass-like thermal conductivity in single crystals
Md Shafkat Bin Hoque, Eric R. Hoglund, Boyang Zhao +20
Insulating materials featuring ultralow thermal conductivity for diverse applications also require robust mechanical properties. Conventional thinking, however, which correlates st…
Photoconductive Effects in Single Crystals of BaZrS
Boyang Zhao, Huandong Chen, Ragib Ahsan +11
Chalcogenide perovskites, such as BaZrS, are emerging semiconductors with potential for high photovoltaic power conversion efficiency. The role of defects in the efficiency of…
Direct Visualization of Localized Vibrations at Complex Grain Boundaries
Eric R. Hoglund, De-Liang Bao, Andrew O'Hara +7
Grain boundaries (GBs) are a prolific microstructural feature that dominates the functionality of a wide class of materials. The change in functionality at a GB is a direct result…
Nanoscale Phonon Spectroscopy Reveals Emergent Interface Vibrational Structure of Superlattices
Eric R. Hoglund, De-Liang Bao, Andrew O'Hara +16
As the length-scales of materials decrease, heterogeneities associated with interfaces approach the importance of the surrounding materials. Emergent electronic and magnetic interf…
Thermal conductivity measurements of sub-surface buried substrates by steady-state thermoreflectance
Md Shafkat Bin Hoque, Yee Rui Koh, Kiumars Aryana +10
Measuring the thermal conductivity of sub-surface buried substrates are of significant practical interests. However, this remains challenging with traditional pump-probe spectrosco…
Interface controlled thermal properties of ultra-thin chalcogenide-based phase change memory devices
Kiumars Aryana, John T. Gaskins, Joyeeta Nag +10
Phase change memory (PCM) is a rapidly growing technology that not only offers advancements in storage-class memories but also enables in-memory data storage and processing towards…