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Inelastic Spectroscopy

Low energy nuclear spin excitations in NdGaO3

Inelastic excitations can be measured on IN16 with extremely high energy resolution.

Many examples for backscattering on rotational tunneling systems can be found in Prager, M. & Heidemann A., Chemical Reviews 1997, 97, 2933-2966.
Similarly, low energy nuclear spin excitations, which arise in the example shown from nuclear hyperfine splitting of Nd nuclei in NdGaO3, can only be resolved with sub-μeV energy resolution (see figure).

Ref.: Chatterji,T. & Frick, B., Solid State Communications 2004, 131, 453.