M. Celli et al., THE STRUCTURE OF LOW-DENSITY ORTHO-DEUTERIUM INVESTIGATED THROUGH NEUTRON-DIFFRACTION, Physica. B, Condensed matter, 234, 1997, pp. 331-333
We report the results of a neutron diffraction experiment performed on
an ortho-deuterium sample along the T = 35 K isotherm at several diff
erent densities (pressures less than 10 bar). The experiment has allow
ed the first measurement of the zero-density limit of the intermolecul
ar contribution to the structure factor in a quantum system like D-2.