127 citations · 1.6k across the 68 of their papers we have counts for
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Magnetic properties of the FeSiB-FePB system
Daniel Hedlund, Johan Cedervall, Alexander Edström +6
The magnetic properties of the compound FeSiPB have been studied, with a focus on the Curie temperature , saturation magnetization $M_\textrm{S}…
Noise-dependent bias in quantitative STEM-EMCD experiments revealed by bootstrapping
Hasan Ali, Jan Rusz, Daniel E. Bürgler +4
Electron magnetic circular dichroism (EMCD) is a powerful technique for estimating element-specific magnetic moments of materials on nanoscale with the potential to reach atomic re…
Lessons from the harmonic oscillator -- a reconciliation of the Frequency-Resolved Frozen Phonon Multislice Method with other theoretical approaches
Paul M. Zeiger, Juri Barthel, Leslie J. Allen +1
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…
Control of the phonon band gap with isotopes in hexagonal boron nitride
Paul Zeiger, Jordan Hachtel, Dominik Legut +5
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 microsco…
Single scan STEM-EMCD in 3-beam orientation using a quadruple aperture
Hasan Ali, Sharath Kumar Manjeshwar Sathyanath, Cheuk-Wai Tai +5
The need to acquire multiple angle-resolved electron energy loss spectra (EELS) is one of the several critical challenges associated with electron magnetic circular dichroism (EMCD…
Simulations of magnetic Bragg scattering in transmission electron microscopy
Justyn Snarski-Adamski, Alexander Edström, Paul Zeiger +4
We have simulated the magnetic Bragg scattering in transmission electron microscopy in two antiferromagnetic compounds, NiO and LaMnAsO. This weak magnetic phenomenon was experimen…
Magnon diffuse scattering in scanning transmission electron microscopy
Keenan Lyon, Anders Bergman, Paul Zeiger +4
We present a theory and a simulation of thermal diffuse scattering due to the excitation of magnons in scanning transmission electron microscopy. The calculations indicate that mag…
Parameterization of magnetic vector potentials and fields for efficient multislice calculations of elastic electron scattering
Keenan Lyon, Jan Rusz
The multislice method, which simulates the propagation of the incident electron wavefunction through a crystal, is a well-established method for analyzing the multiple scattering e…
Simulations of angle- and spatially-resolved vibrational electron energy loss spectroscopy for a system with a planar defect
Paul M. Zeiger, Ján Rusz
Recent developments in experiments with vibrational electron energy loss spectroscopy (EELS) have revealed spectral shape variations at spatial resolutions down to sub-atomic scale…
The frequency-resolved frozen phonon multislice method and its application to vibrational EELS using parallel illumination
Paul M. Zeiger, Ján Rusz
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…
Atomically sharp domain walls in an antiferromagnet
Filip Krizek, Sonka Reimers, Zdeněk Kašpar +18
The interest in understanding scaling limits of magnetic textures such as domain walls spans the entire field of magnetism from its relativistic quantum fundamentals to application…
Simultaneous mapping of EMCD signals and crystal orientations in a transmission electron microscope
Hasan Ali, Jan Rusz, Tobias Warnatz +2
When magnetic properties are analysed in a TEM using the technique of electron magnetic circular dichroism (EMCD), one of the critical parameters is the sample orientation, and thi…
Sum rules in zone axis STEM-orbital angular momentum resolved electron magnetic chiral dichroism
Matteo Zanfrognini, Enzo Rotunno, Jan Rusz +4
In this work we derive sum rules for orbital angular momentum(OAM) resolved electron magnetic chiral dichroism (EMCD) which enable the evaluation of the strength of spin and orbita…
Efficient and versatile model for vibrational STEM-EELS
Paul M. Zeiger, Ján Rusz
We introduce a novel method for the simulation of the impact scattering in vibrational scanning transmission electron microscopy electron energy loss spectroscopy (STEM-EELS) simul…
Enabling atomic resolution in convergent beam EMCD measurements by the use of patterned apertures
Hasan Ali, Devendra Negi, Tobias Warnatz +3
We give an experimental demonstration of two types of recently proposed ventilator apertures which can be used to acquire electron magnetic circular dichroic (EMCD) signals in zone…
Single-pass STEM-EMCD on a zone axis using a patterned aperture: progress in experimental and data treatment methods
Thomas Thersleff, Linus Schönström, Cheuk-Wai Tai +5
Measuring magnetic moments in ferromagnetic materials with atomic column resolution is theoretically possible using the electron magnetic circular dichroism (EMCD) technique in a (…
Electronic specific heat coefficient and magnetic properties of Y(FeCo) Laves phases: a combined experimental and first-principles study
Bartosz Wasilewski, Zbigniew Śniadecki, Mirosław Werwiński +3
We investigated experimentally and computationally the concentration dependence of electronic specific heat coefficient in Y(FeCo) pseudobinary Laves phase syst…
Orbital-angular-momentum-resolved electron magnetic chiral dichroism
Enzo Rotunno, Matteo Zanfrognini, Stefano Frabboni +4
We propose a highly efficient atomically-resolved mode of electron magnetic chiral dichroism. This method exploits the recently introduced orbital angular momentum spectrometer to…
Quantum-mechanical treatment of atomic resolution differential phase contrast imaging of magnetic materials
Alexander Edström, Axel Lubk, Ján Rusz
Utilizing the Pauli equation based multislice method, introduced in Phys. Rev. Lett. 116, 127203 (2016), we study the atomic resolution differential phase contrast (DPC) imaging on…
Proposal for measuring magnetism with patterned apertures
Devendra Negi, Jakob Spiegelberg, Shunsuke Muto +5
We propose a magnetic measurement method utilizing a patterned post-sample aperture in a transmission electron microscope. While utilizing electron magnetic circular dichroism, the…
Proposal for a three-dimensional magnetic measurement method with nanometer-scale depth resolution
Devendra Negi, Lewys Jones, Juan-Carlos Idrobo +1
We propose a magnetic measurement method based on combining depth sectioning and electron magnetic circular dichroism in scanning transmission electron microscopy. Electron vortex…
Magnetocrystalline anisotropy of Fe5PB2 and its alloys with Co and 5d elements: a combined first-principles and experimental study
Mirosław Werwiński, Alexander Edström, Ján Rusz +5
The FePB compound offers tunable magnetic properties via the possibility of various combinations of substitutions on the Fe and P-sites. Here, we present a combined computa…
Magnetic anisotropy in Permalloy: hidden quantum mechanical features
Debora C M Rodrigues, Angela B Klautau, Alexander Edström +5
By means of relativistic, first principles calculations, we investigate the microscopic origin of the vanishingly low magnetic anisotropy of Permalloy, here proposed to be intrinsi…
On the origin of perpendicular magnetic anisotropy in strained Fe-Co(-X) films
Ludwig Reichel, Alexander Edström, Darius Pohl +4
Very high magnetic anisotropies have been theoretically predicted for strained Fe-Co(-X) and indeed several experiments on epitaxial thin films seemed to confirm strain induced ani…