Measurement of the 3D Born-Oppenheimer potential of a proton in a hydrogen-bonded system via Deep Inelastic Neutron Scattering: the superprotonic conductor Rb(3)H(SO(4))(2).


We report the first direct measurement of the proton 3-D Born-Oppenheimer potential in any material. The proton potential surfaces in the hydrogen-bonded superprotonic conductor Rb(3)H(SO(4))(2) are extracted from the momentum distribution measured using Deep Inelastic Neutron Scattering (DINS). The potential has a single minimum along the bond direction… (More)


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