This title appears in the Scientific Report : 2015 

Single Crystal Neutron Diffraction Studies of Complex Hydrogen Bonds in Silicates and Phosphates with HEIDI
Meven, Martin (Corresponding author)
Gatta, G. D.
Streumethoden; JCNS-2
VI European Conference on Neutron Scattering, Zaragoza (Spain), 2015-08-30 - 2015-09-04
Jülich Centre for Neutron Research (JCNS)
Quantum Condensed Matter: Magnetism, Superconductivity
Controlling Collective States
Energy > 1
Minerals of both the silicate and phosphate families are subject of numerous studies because they are needed for many industrial processes. In addition, silicates provide about 90% of the earth's crust. Due to their complex framework structures many of these compounds were extensively studied with X-ray diffraction. But for those members containing hydrogen the important role of hydrogen bonds on their structures could not always resolved clearly with this method. Recently various silicates and phosphates of these groups with very different crystallographic space groups were studied on the hot neutorn single crystal diffractometer HEIDI at the Heinz Maier-Leibnitz Zentrum in Garching (MLZ). The combination of neutron and X-ray diffraction together with other methods reveal for all studied minerals, e.g. epidote, zoisite, elbaite, brazillianite and paravauxite - valuable information about their structural details, not only the different roles of hydrogen bonds but also occupational and site disorder.