ABSTRACT

Neutrons are the tool of choice for investigating the phonon propagation governing the lattice thermal conductivity. Neutron investigations can provide information on the microscopic level about atomic dynamics, which can help understand the observed macroscopic observations. Additionally, the neutron wavelength is comparable to interatomic distances; therefore, neutrons can probe the position of the atoms in the unit cell. še use of neutrons as probes was pioneered by Brockhouse and Shull, and their work was recognized by the 1994 Nobel Prize award in physics.1