The HYSPEC spectrometer at the Spallation Neutron Source combines time-of-flight spectroscopy with focusing Bragg optics, facilitating both unpolarized and polarized neutron scattering experiments. Polarization analysis of scattered neutrons is achieved using a multi-channel array of 960 FeCoV-based supermirror polarizers, spanning 60 degrees horizontally and ±7.5 degrees vertically. The...
Polarised neutrons have long been used to study magnetism. Polarisation analysis also provide a complementary tool to deuteration in the determination of coherent and single-particle motions in soft matter studies. In addition, Neutron Spin Echo has been used extensively in the studies of dynamical processes in soft matters. In fundamental physics, the search for the neutron electric dipole...
The BIFROST spectrometer at the upcoming neutron source ESS in Lund (S) will be a game-changer for the study of quantum materials, such as frustrated magnets, quantum magnets and superconductors. The spectrometer utilizes a multiplexing backend on an indirect geometry time-of-flight (ToF) front end. The primary spectrometer enables an unprecedented polychromatic sample flux exceeding...
The ILL is finalising the construction of the D007 neutron diffuse scattering spectrometer. The instrument makes use of neutron polarization analysis to provide a clean and unambiguous separation of the magnetic, incoherent, and structural contributions to the scattering. It replaces D7, which made major contributions in the study of frustrated magnetism, short-ranged order and the dynamics...
One of the cornerstones of contemporary research on strongly correlated materials is magnetism and related phenomena in the solid state. This is a diverse and rapidly evolving subject flourishing by new fundamental developments like skyrmions, magnetic topological electronic states, and altermagnetism, among others, with great potential for various applications.
Polarized neutron scattering...
Spherical neutron polarimetry has been routinely established using Cryopad [1], measuring in zero-field the full polarization tensor for single Bragg peaks. This is a precise tool perfectly suited for monochromatic instruments at reactor sources. How to achieve this goal at ESS and at pulsed sources in general with polychromatic beams?
There are two feasible solutions. Since such experiments...
