7 papers
A versatile generalized digital twin for Electron Microscopy
Thomas W. Pfeifer, Andrew R. Lupini, Eric R. Hoglund
Development of specialized imaging and spectroscopy states in transmission electron microscopy is needed for novel applications, such as flexible momentum-resolved high energy-reso…
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…
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…
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…
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…
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…