The idea of atomic resolution neutron holography proposed by the authors of the present talk has been experimentally proven using both the internal source and internal detector concept in three various experiments carried out on samples simpsonite, PbCd alloy and PdH metalhydride. It was shown that the 3D image of the local atomic arrangement around the source/detector the position of nuclei could be with high accuracy (better than 0.01 Å) reconstructed. This accuracy allows observing the local lattice distortion of the lattice by a direct way. In order to achieve these results numerous corrections (e.g. getting rid of Bragg reflections, taking into account of the effect of twin images, the influence of the far removed objects on the holography images and the distortion caused by the finite resolution of the instrument used) should be properly applied. In the present talk we discuss the way for extending of systems to be investigated. Some methodical news (e.g. the use of multiwave holography, the investigation of not fully ordered systems) are also considered.
- Atomic resolution
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering