ABSTRACT

This chapter presents a number of science examples obtained with equipment discussed previously. They are grouped in classes which identify issues and techniques which are typical - and maybe unique - for neutron scattering and which cover a large part of the community working in this area: Structure of magnetic and low-Z materials, lattice and spin dynamics (phonons, magnons), crystal field excitations, small-angle neutron scattering (SANS), and quasielastic neutron scattering (QENS). The aim of this chapter is to illustrate to the reader what kind of data can be obtained or expected under certain P/T conditions using certain high pressure devices, and a certain instrument. The emphasis in the choice of the examples was put on more recent high pressure methods which have emerged since the early 1990s, in particular sapphire anvil cells and Paris-Edinburgh type cells. The examples will hopefully demonstrate the technical issues related to a given high pressure device, its constrains in terms of background, accessible Q range, control of pressure and temperature, compatibility with high magnetic fields, and other experimental parameters. If adequate, examples of both powder and single crystal applications were chosen to demonstrate their often quite different requirements. There are certainly many other good examples in the literature which would merit to be cited in this chapter but which could not be included for reasons of space.