Compared with current instruments, the increased sensitivity of ARCS offers new opportunities for scientific studies in the following.
Lattice Dynamics
- Entropy and the effects of vibrational modes on stability and phase transitions of solids
- Excitations in disordered materials; effects of nanoscale features on vibrational entropy and thermodynamic stability
- Equations-of-state from the measured phonon density-of-states versus temperature and pressure
- Phonons in correlated-electron materials; coupling of lattice and electronic degrees of freedom in high Tc, heavy-fermion and mixed valence materials
Magnetic Dynamics
- High-temperature superconductivity-spin dynamics in superconductors and precursor compounds and crystal field spectroscopy
- Low-dimensional systems; one-dimensional quantum magnets and low-dimensional conductors
- Magnetism in actinide materials; heavy fermion magnetism and superconductivity
Chemical Physics
- Deep inelastic neutron scattering studies of hydrogen
For more information on the science case for ARCS see the DOE proposal at the ARCS Caltech web site.
