TY - JOUR
T1 - Neutron Compton scattering as a molecular characterization technique
T2 - A study on NaH F2
AU - Colognesi, D.
AU - Pietropaolo, A.
AU - Senesi, R.
AU - Ramirez-Cuesta, A. J.
PY - 2007/11/19
Y1 - 2007/11/19
N2 - Inelastic neutron scattering experiments were performed at intermediate and high momentum transfers, up to 85-90 -1, to study the proton momentum distribution in polycrystalline sodium hydrogen fluoride (NaH F2) at low temperature (below 5 K). The H mean kinetic energy was extracted and compared to the results from hydrogen-projected density of phonon states derived from intermediate momentum transfer inelastic neutron scattering and lattice dynamics simulations. A reasonable agreement between the two figures was found. In addition, relevant aspects of high momentum transfer neutron scattering from NaH F2 were explored in detail, ranging from an alternative evaluation of final state effects to the role played by the instrumental resolution and to the possibility to reconstruct the potential felt by a proton from its momentum distribution.
AB - Inelastic neutron scattering experiments were performed at intermediate and high momentum transfers, up to 85-90 -1, to study the proton momentum distribution in polycrystalline sodium hydrogen fluoride (NaH F2) at low temperature (below 5 K). The H mean kinetic energy was extracted and compared to the results from hydrogen-projected density of phonon states derived from intermediate momentum transfer inelastic neutron scattering and lattice dynamics simulations. A reasonable agreement between the two figures was found. In addition, relevant aspects of high momentum transfer neutron scattering from NaH F2 were explored in detail, ranging from an alternative evaluation of final state effects to the role played by the instrumental resolution and to the possibility to reconstruct the potential felt by a proton from its momentum distribution.
UR - https://www.scopus.com/pages/publications/36248943977
U2 - 10.1103/PhysRevB.76.174206
DO - 10.1103/PhysRevB.76.174206
M3 - Article
AN - SCOPUS:36248943977
SN - 1098-0121
VL - 76
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 17
M1 - 174206
ER -