460 citations · 899 across the 14 of their papers we have counts for
14 papers
Active learning-assisted neutron spectroscopy with log-Gaussian processes
Mario Teixeira Parente, Georg Brandl, Christian Franz +3
Neutron scattering experiments at three-axes spectrometers (TAS) investigate magnetic and lattice excitations by measuring intensity distributions to understand the origins of mate…
Autonomous Experiments for Neutron Three-Axis Spectrometers (TAS) with Log-Gaussian Processes
Mario Teixeira Parente, Georg Brandl, Christian Franz +2
Autonomous experiments are excellent tools to increase the efficiency of material discovery. Indeed, AI and ML methods can help optimizing valuable experimental resources as, for e…
Emergent topological spin structures in a centrosymmetric cubic perovskite
S. Ishiwata, T. Nakajima, J. -H. Kim +18
The skyrmion crystal (SkX) characterized by a multiple-q helical spin modulation has been reported as a unique topological state that competes with the single-q helimagnetic order…
The multi-purpose three-axis spectrometer (TAS) MIRA at FRM II
R. Georgii, T. Weber, M. Skoulatos +4
The cold-neutron three-axis spectrometer MIRA is an instrument optimized for low-energy excitations. Its excellent intrinsic -resolution makes it ideal for studying incommensura…
Uniaxial pressure dependence of magnetic order in MnSi
A. Chacon, A. Bauer, T. Adams +5
We report comprehensive small angle neutron scattering (SANS) measurements complemented by ac susceptibility data of the helical order, conical phase and skyrmion lattice phase (SL…
Band structure of helimagnons in MnSi resolved by inelastic neutron scattering
M. Kugler, G. Brandl, J. Waizner +8
A magnetic helix realizes a one-dimensional magnetic crystal with a period given by the pitch length . Its spin-wave excitations -- the helimagnons -- experience Bragg scatter…
Versatile module for experiments with focussing neutron guides
T. Adams, G. Brandl, A. Chacon +6
We report the development of a versatile module that permits fast and reliable use of focussing neutron guides under varying scattering angles. A simple procedure for setting up th…
Montel optics: Tailoring phase-space in neutron beam extraction
Stefan Weichselbaumer, Georg Brandl, Robert Georgii +3
In view of the trend towards smaller samples and experiments under extreme conditions it is important to deliver small and homogeneous neutron beams to the sample area. For this pu…
Monte-Carlo Simulations for the optimisation of a TOF-MIEZE Instrument
T. Weber, G. Brandl, R. Georgii +3
The MIEZE (Modulation of Intensity with Zero Effort) technique is a variant of neutron resonance spin echo (NRSE), which has proven to be a unique neutron scattering technique for…
Optical floating zone growth of high-quality Cu2MnAl single crystals
Andreas Neubauer, Florian Jonietz, Martin Meven +5
We report the growth of large single-crystals of Cu2MnAl, a ferromagnetic Heusler compound suitable for polarizing neutron monochromators, by means of optical floating zone under u…
Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
T. Adams, A. Chacon, M. Wagner +6
We report a long-wavelength helimagnetic superstructure in bulk samples of the ferrimagnetic insulator Cu2OSeO3. The magnetic phase diagram associated with the helimagnetic modulat…
Tests of Modulated Intensity Small Angle Scattering in time of flight mode
G. Brandl, J. Lal, J. Carpenter +5
We report results of tests of the MISANS technique at the CG-1D beamline at High Flux Isotope Reactor (HFIR), Oak Ridge National Laboratory (ORNL). A chopper at 40 Hz simulated a p…
Large Scales - Long Times: Adding High Energy Resolution to SANS
G. Brandl, R. Georgii, W. Häußler +2
The Neutron Spin Echo (NSE) variant MIEZE (Modulation of IntEnsity by Zero Effort), where all beam manipulations are performed before the sample position, offers the possibility to…
Turn-key module for neutron scattering with sub-micro-eV resolution
Robert Georgii, Georg Brandl, Nikolas Arend +5
We report the development of a compact turn-key module that boosts the resolution in quasi-elastic neutron scattering by several orders of magnitude down to the low sub-micro-eV ra…