Nuclear Spin Relaxation and Atomic Motion in Inorganic Glasses
Nuclear Spin Relaxation (NSR) techniques provide detailed microscopic information about the mechanisms of atomic motion in solids /1/. Similar to quasi-elastic neutron scattering, however, the observed NSR parameters are correlated with the motional process in a rather indirect manner via fluctuations of a nuclear spin hamiltonian which transfer energy from the spin system to the lattice. While for crystalline solids theories of atomic motion-induced NSR are fairly well established there is a lack in corresponding theories for vitreous solids. It is the aim of the present contribution to present results of NSR experiments performed on a large variety of inorganic glasses between 0.4K and the glass transition temperature in view of different theoretical approaches.
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