MIEZE Neutron Spin-Echo Spectroscopy of Strongly Correlated Electron Systems

Abstract

Recent progress in neutron spin-echo spectroscopy by means of longitudinal Modulation of IntEnsity with Zero Effort (MIEZE) is reviewed. Key technical characteristics are summarized which highlight that the parameter range accessible in momentum and energy, as well as its limitations, are extremely well understood and controlled. Typical experimental data comprising quasi-elastic and inelastic scattering are presented, featuring magneto-elastic coupling and crystal field excitations in Ho2Ti2O7, the skyrmion lattice to paramagnetic transition under applied magnetic field in MnSi, ferromagnetic criticality and spin waves in Fe. In addition bench marking studies of the molecular dynamics in H2O are reported. Taken together, the advantages of MIEZE spectroscopy in studies at small and intermediate momentum transfers comprise an exceptionally wide dynamic range of over seven orders of magnitude, the capability to perform straight forward studies on depolarizing samples or under depolarizing sample environments, as well as on incoherently scattering materials.

arXiv comment13 pages, 9 figures

References in corpus (17)

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• Revisiting Static and Dynamic Spin Ice Correlations in Ho2Ti2O7
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• Turn-key module for neutron scattering with sub-micro-eV resolution
• Ultra-High Resolution Neutron Spectroscopy of Low-Energy Spin Dynamics in UGe${}_2$
• A 17 T horizontal field cryomagnet with rapid sample change designed for beamline use
• Monte-Carlo Simulations for the optimisation of a TOF-MIEZE Instrument
• Phonon-mediated spin-flipping mechanism in the spin ices Dy${}_2$Ti${}_2$O${}_7$ and Ho${}_2$Ti${}_2$O${}_7$
• CASCADE - a multi-layer Boron-10 neutron detection system
• On the resolution of a MIEZE spectrometer
• Dipolar effects on the critical fluctuations in Fe: Investigation by MIEZE

Cited by in corpus (11)

• The 2020 Skyrmionics Roadmap
• Using small-angle scattering to guide functional magnetic nanoparticle design
• Topological magnon band structure of emergent Landau levels in a skyrmion lattice
• Weak crystallization of fluctuating skyrmion textures in MnSi
• Evolution of magneto-crystalline anisotropies in Mn${}_{1-x}$Fe${}_x$Si and Mn${}_{1-x}$Co${}_x$Si as inferred from small-angle neutron scattering and bulk properties
• Skyrmion-Excited Spin Wave Fractal Network
• Neutron Depolarization due to Ferromagnetism and Spin Freezing in CePd${}_{1-x}$Rh${}_x$
• Spin-Energy Entanglement of a Time-Focused Neutron
• Extending MIEZE spectroscopy towards thermal wavelengths
• Correcting Aberrations of a Transverse-Field Neutron Resonance Spin Echo Instrument
• MIASANS at the longitudinal neutron resonant spin-echo spectrometer RESEDA