Paul Zeiger
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View article: Dynamical Theory of Angle-Resolved Electron Energy Loss and Gain Spectroscopies of Phonons and Magnons in Transmission Electron Microscopy Including Multiple Scattering Effects
Dynamical Theory of Angle-Resolved Electron Energy Loss and Gain Spectroscopies of Phonons and Magnons in Transmission Electron Microscopy Including Multiple Scattering Effects Open
We present a method for computing angle-resolved electron energy loss and gain spectroscopies for phonon and magnon excitations in transmission electron microscopy. Fractional scattering intensities are derived from the temperature-depende…
View article: Magnon spectroscopy in the electron microscope
Magnon spectroscopy in the electron microscope Open
The miniaturisation of transistors is approaching its limits due to challenges in heat management and information transfer speed. To overcome these obstacles, emerging technologies such as spintronics are being developed, which leverage th…
View article: Systematic Absences of Optical Phonon Modes in Phonon Dispersion Measured by Electron Microscopy
Systematic Absences of Optical Phonon Modes in Phonon Dispersion Measured by Electron Microscopy Open
Phonon dispersion is widely used to elucidate the vibrational properties of materials. As an emerging technique, momentum-resolved vibrational spectroscopy in scanning transmission electron microscopy (STEM) offers an unparalleled approach…
View article: Dynamical theory of angle-resolved electron energy loss and gain spectroscopies of phonons and magnons in transmission electron microscopy including multiple scattering effects
Dynamical theory of angle-resolved electron energy loss and gain spectroscopies of phonons and magnons in transmission electron microscopy including multiple scattering effects Open
We present a method for computing angle-resolved electron-energy-loss and gain spectroscopies for phonon and magnon excitations in transmission electron microscopy. Fractional scattering intensities are derived from the temperature-depende…
View article: Inelastic electron scattering at large angles: the phonon polariton contribution
Inelastic electron scattering at large angles: the phonon polariton contribution Open
We explore the inelastic electron scattering in SrTiO3, PbTiO3, and SiC in their phonon energy range, challenging the assumption that phonon polaritons are excluded at large angles in high-resolution transmission electron energy-loss spect…
View article: Real-Space Visualization of Frequency-Dependent Anisotropy of Atomic Vibrations
Real-Space Visualization of Frequency-Dependent Anisotropy of Atomic Vibrations Open
The underlying dielectric properties of materials, intertwined with intriguing phenomena such as topological polariton modes and anisotropic thermal conductivities, stem from the anisotropy in atomic vibrations. Conventionally, X-ray diffr…
View article: Unveiling the impact of temperature on magnon diffuse scattering detection in the transmission electron microscope
Unveiling the impact of temperature on magnon diffuse scattering detection in the transmission electron microscope Open
Magnon diffuse scattering (MDS) signals could, in principle, be studied with high spatial resolution in scanning transmission electron microscopy (STEM), thanks to recent technological progress in electron energy-loss spectroscopy. However…
View article: Lessons from the harmonic oscillator: Reconciliation of the frequency-resolved frozen phonon multislice method with other theoretical approaches
Lessons from the harmonic oscillator: Reconciliation of the frequency-resolved frozen phonon multislice method with other theoretical approaches Open
We compare the frequency-resolved frozen phonon multislice (FRFPMS) method [introduced in P. M. Zeiger and J. Rusz, Phys. Rev. Lett. 124, 025501 (2020)] with other theoretical approaches used to account for the inelastic scattering of high…
View article: Theory and Simulations of Ultra-low Energy Loss Spectroscopy at High Spatial Resolution
Theory and Simulations of Ultra-low Energy Loss Spectroscopy at High Spatial Resolution Open
Journal Article Theory and Simulations of Ultra-low Energy Loss Spectroscopy at High Spatial Resolution Get access Jan Rusz, Jan Rusz Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden Corresponding author: jan.rusz@p…
View article: Simulations of Phonon Spectroscopy in the Impact Scattering Regime – Advances and Applications
Simulations of Phonon Spectroscopy in the Impact Scattering Regime – Advances and Applications Open
Journal Article Simulations of Phonon Spectroscopy in the Impact Scattering Regime – Advances and Applications Get access Paul M Zeiger, Paul M Zeiger Uppsala University, Department of Physics and Astronomy, Uppsala, Sweden Corresponding a…
View article: Lessons from the harmonic oscillator -- a reconciliation of the Frequency-Resolved Frozen Phonon Multislice Method with other theoretical approaches
Lessons from the harmonic oscillator -- a reconciliation of the Frequency-Resolved Frozen Phonon Multislice Method with other theoretical approaches Open
We compare the Frequency-Resolved Frozen Phonon Multislice (FRFPMS) method, introduced in Phys. Rev. Lett. 124, 025501 (2020), with other theoretical approaches used to account for the inelastic scattering of high energy electrons, namely …
View article: Control of the phonon band gap with isotopes in hexagonal boron nitride
Control of the phonon band gap with isotopes in hexagonal boron nitride Open
The isotopic mass of constituent elements of materials has a well-known effect on the energy of vibrational modes. By means of monochromated scanning transmission electron microscopy we have experimentally studied the phonon bandstructure …
View article: Unveiling the impact of temperature on magnon diffuse scattering detection in the transmission electron microscope
Unveiling the impact of temperature on magnon diffuse scattering detection in the transmission electron microscope Open
Magnon diffuse scattering (MDS) signals could be studied with high spatial resolution in scanning transmission electron microscopy (STEM), thanks to recent technological progress in electron energy loss spectroscopy. However, detecting MDS…
View article: Simulations of magnetic Bragg scattering in transmission electron microscopy
Simulations of magnetic Bragg scattering in transmission electron microscopy Open
We have simulated the magnetic Bragg scattering in transmission electron microscopy in two antiferromagnetic compounds, NiO and LaMnAsO. This weak magnetic phenomenon was experimentally observed in NiO by Loudon (2012). We have computation…
View article: Simulations of magnetic Bragg scattering in transmission electron microscopy
Simulations of magnetic Bragg scattering in transmission electron microscopy Open
We have simulated the magnetic Bragg scattering in transmission electron microscopy in two antiferromagnetic compounds, NiO and LaMnAsO. This weak magnetic phenomenon was experimentally observed in NiO by Loudon. We have computationally re…
View article: Vibrational STEM-EELS Simulations with the FRFPMS Method: Applications and Advances
Vibrational STEM-EELS Simulations with the FRFPMS Method: Applications and Advances Open
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View article: Theory of magnon diffuse scattering in scanning transmission electron microscopy
Theory of magnon diffuse scattering in scanning transmission electron microscopy Open
We present a theory and a simulation of diffuse scattering due to the excitation of magnons in scanning transmission electron microscopy. The calculations indicate that magnons can present atomic contrast when detected by electron energy-l…
View article: Simulations of spatially and angle-resolved vibrational electron energy loss spectroscopy for a system with a planar defect
Simulations of spatially and angle-resolved vibrational electron energy loss spectroscopy for a system with a planar defect Open
Recent developments in experiments with vibrational electron energy loss spectroscopy (EELS) have revealed spectral shape variations at spatial resolutions down to the atomic scale. Interpretation in terms of local phonon density of states…
View article: Frequency-resolved frozen phonon multislice method and its application to vibrational electron energy loss spectroscopy using parallel illumination
Frequency-resolved frozen phonon multislice method and its application to vibrational electron energy loss spectroscopy using parallel illumination Open
We explore the capabilities of the frequency-resolved frozen phonon multislice method introduced in [Phys. Rev. Lett. 124, 025501 (2020)] to model inelastic vibrational scattering in transmission electron microscopy. We review the method i…
View article: Magnetism and phonons in transmission electron microscopy
Magnetism and phonons in transmission electron microscopy Open
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.
View article: The frequency resolved frozen phonon method for vibrational STEM-EELS
The frequency resolved frozen phonon method for vibrational STEM-EELS Open
An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.