Conveners
Spectroscopy (hard-matter)
- Petr Čermák (MGML, Charles University)
Spectroscopy (hard-matter)
- Petr Čermák (MGML, Charles University)
Spectroscopy (hard-matter)
- Petr Čermák (MGML, Charles University)
This talk provides an overview about magnetic and spectroscopic properties of a new class of magnets, TM2Mo3O8, composed of decorated honeycomb layers of transition metal (TM) ions. Although in terms of chemical bonding these compounds are three dimensional, the magnetic interactions have a strongly two-dimensional character, making them similar to van-der-Waals magnets. The two-dimanesional...
Unravelling emergent excitations and exotic quasiparticles in frustrated and topological quantum magnets represents a tremendous challenge experimentally, since the relevant inelastic scattering signals are very weak, often very broad in Q-space, and may be highly anisotropic in spin-space or strongly bond-direction dependent. A dedicated cold-neutron TOF spectrometer that combines with a...
Neutron spectroscopy has played a pivotal role uncovering lattice dynamical properties from early studies of elemental superconductors to density-wave materials and current investigations of materials featuring intertwined ordering phenomena. Over the years, experimental goals have evolved from the basic determination of phonon dispersion to detailed mapping of phonon renormalization related...
Mesoscale patterns are well-known in ferromagnets, ferroelectrics, superconductors, monomolecular films or block copolymers, where they reflect spatial variations of a pertinent order parameter at length scales and time scales that may be described classically. In the past thirty years increasing evidence has suggested the presence of mesoscale patterns near zero-temperature phase...
The thermal-neutron three axes spectrometer PUMA at MLZ is designed to achieve high neutron flux at the sample position, making it a leading instrument in the worldwide research community for performing experiments with low inelastic scattering intensity, such as magnetic or phononic excitations. To further enhance its capabilities, the installation of a neutron velocity selector is proposed....
Strongly correlated electronic systems from the field of magnetism and superconductivity are one of the key fields of research where neutron diffraction and spectroscopy play a pivotal role. At MLZ, several high impact discoveries have been achieved over the last decade directly revealing new functionalities towards future data storage or logical devices. Further, new instrumental concepts and...
TOPAS was conceived to increase the capability to study high energy excitations at the MLZ.
While the thermal three axis spectrometer PUMA is ideal to study coherent excitations in condensed matter tuning the instrument to the respective reciprocal space region, TOPAS aims for mapping large regions in reciprocal space or the study of localized excitations, where one can benefit from the...
PANDA is a world-leading cold three-axis spectrometer complementing TOF instruments in case of specific requests for resolution and related signal-to-noise ratio or demanding sample environments. Providing experiments with highest reliability since 2005, PANDA is always requested for newest scientific aspects in strongly correlated electron systems and on quantum magnetism, but serves for...
Quantum materials often reveal ground states with deeply intertwined electronic charge, orbital, spin and lattice degrees of freedom. Their interplay can stabilize novel collective phenomena that can be understood by microscopic studies susceptible to the various degrees of freedom, and by their dependencies on external tuning parameters such as pressure, magnetic field and chemical...