Diffuse scattering in ice Ih
  Single crystals of ice Ih, extracted from the subglacial Lake Vostok accretion ice layer (3621 m depth) were investigated by means of diffuse x-ray scattering and inelastic x-ray scattering. The diffuse scattering was identified as mainly inelastic and rationalized in the frame of ab initio calculations for the ordered ice XI approximant. Together with Monte-Carlo modelling our data allowed reconsidering previously available neutron diffuse scattering data of heavy ice as the sum of thermal diffuse scattering and static disorder contribution. 
Bj\"orn Wehinger, Dmitry Chernyshov, Michael Krisch, Sergey Bulat,   Victor Ezhov and Alexe\"i Bosak
cond-mat.mtrl-sci