STRUCTURAL FLUCTUATIONS AND MAGNETIC EXCITATIONS IN THE SPIN-PEIERLS SYSTEM CUGEO3

A review of recent experimental results obtained by neutron diffractio n and inelastic neutron scattering on the inorganic spin-Peierls compo und CuGeO3 is proposed. As the spin-Peierls scenario results from the interplay between lattice and magnetic fluctuations, we will focus on both aspects of the problem. With CuGeO3 most of the theoretical predi ctions have been very quantitatively verified. In this article, we wil l describe the most relevant results which have been obtained in zero field and at low fields. However, there remains unsolved questions whi ch we will discuss briefly.