Leonie Spitz
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View article: Phonon spectrum in the spin-Peierls phase of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>CuGeO</mml:mi> <mml:mn>3</mml:mn> </mml:msub> </mml:math>
Phonon spectrum in the spin-Peierls phase of Open
CuGeO 3 has long been studied as a prototypical example of the spin-Peierls transition in a S = 1 / 2 Heisenberg chain. Despite intensive investigation of this quasi-one-dimensional material, systematic measurements and calculation…
View article: Calculated phonon spectrum and superexchange interactions in the dimerized phase of CuGeO3
Calculated phonon spectrum and superexchange interactions in the dimerized phase of CuGeO3 Open
This repository contains the input and output data of density functional theory calculations of the phonon spectrum of CuGeO3 using VASP and Phonopy and the input and output data for a total energy mapping analysis (TEMA) used to estimate …
View article: Comparison of time-of-flight and MIEZE neutron spectroscopy of H<sub>2</sub>O
Comparison of time-of-flight and MIEZE neutron spectroscopy of H<sub>2</sub>O Open
We report a comparison of modulation of intensity with zero effort (MIEZE), a neutron spin–echo technique, and neutron time-of-flight (ToF) spectroscopy, a conventional neutron scattering method. The evaluation of the respective recorded s…
View article: Comparison of time-of-flight with MIEZE spectroscopy of H$_2$O: Necessity to go beyond the spin-echo approximation
Comparison of time-of-flight with MIEZE spectroscopy of H$_2$O: Necessity to go beyond the spin-echo approximation Open
Here, we discuss the comparability of data acquisitioned with the Modulation of IntEnsity with Zero Effort data, a neutron spin-echo (NSE) technique to neutron Time-of-Flight (ToF) spectroscopy data. As a NSE technique MIEZE records the in…
View article: Entropy-Assisted, Long-Period Stacking of Honeycomb Layers in an AlB<sub>2</sub>-Type Silicide
Entropy-Assisted, Long-Period Stacking of Honeycomb Layers in an AlB<sub>2</sub>-Type Silicide Open
Configurational entropy can impact crystallization processes, tipping the scales between structures of nearly equal internal energy. Using alloyed single crystals of Gd2PdSi3 in the AlB2-type structure, we explore the formation of complex …
View article: Optimized signal deduction procedure for the MIEZE spectroscopy technique
Optimized signal deduction procedure for the MIEZE spectroscopy technique Open
A method is reported to determine the phase and amplitude of sinusoidally modulated event rates, binned into four bins per oscillation, based on data generated at the resonant neutron spin-echo spectrometer RESEDA at FRM-II. The presented …
View article: Optimized signal deduction procedure for the MIEZE neutron spectroscopy technique
Optimized signal deduction procedure for the MIEZE neutron spectroscopy technique Open
We report a method to determine the phase and amplitude of sinusoidally modulated event rates, binned into 4 bins per oscillation. The presented algorithm relies on a reconstruction of the unknown parameters. It omits a calculation intensi…
View article: Geometrical Hall effect and momentum-space Berry curvature from spin-reversed band pairs
Geometrical Hall effect and momentum-space Berry curvature from spin-reversed band pairs Open
When nanometric, noncoplanar spin textures with scalar spin chirality (SSC) are coupled to itinerant electrons, they endow the quasiparticle wave functions with a gauge field, termed Berry curvature, in a way that bears analogy to relativi…
View article: Momentum-space Berry curvature in a canted ferromagnet: spin-orbit coupling versus spin non-coplanarity
Momentum-space Berry curvature in a canted ferromagnet: spin-orbit coupling versus spin non-coplanarity Open
When nanometric, noncoplanar spin textures are coupled to itinerant electrons, they endow the quasiparticle wavefunctions with a gauge field, termed Berry curvature, in a way that bears analogy to relativistic spin-orbit coupling (SOC). Th…
View article: Topological Nernst Effect of the Two-Dimensional Skyrmion Lattice
Topological Nernst Effect of the Two-Dimensional Skyrmion Lattice Open
The topological Hall effect (THE) and its thermoelectric counterpart, the topological Nernst effect (TNE), are hallmarks of the skyrmion lattice phase (SkL). We observed the giant TNE of the SkL in centrosymmetric Gd_{2}PdSi_{3}, comparabl…
View article: The software package MIEZEPY for the reduction of MIEZE data
The software package MIEZEPY for the reduction of MIEZE data Open
Modulation of intensity with zero effort (MIEZE) is a neutron resonant spin echo technique which allows to measure the intermediate scattering function S ( Q , τ ) under depolarizing conditions. Since MIEZE produces a complex four dimensio…
View article: Longitudinal Neutron Resonance Spin Echo Spectroscopy under Large Energy Transfers
Longitudinal Neutron Resonance Spin Echo Spectroscopy under Large Energy Transfers Open
Longitudinal neutron resonance spin echo (LNRSE) spectroscopy offers very high energy resolution due to the self correction of the resonant spin flippers, and a wide dynamical range nominally exceeding six orders of magnitude in resolution…