Atomic resolution neutron holography (present status and future prospects)

Autor(en)

Laszlo Cser, Gerhard Krexner, M. Markó, Markus Prem, Ivan Sharkov, Gyula Török

Abstrakt

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 A°) 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. Œ 2006 Elsevier B.V. All rights reserved.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Magyar Tudományos Akadémia, Saint Petersburg State University, Central Research Institute for Physics

Journal

Physica B: Condensed Matter

Band

385-386

Seiten

1197-1199

Anzahl der Seiten

3

ISSN

0921-4526

DOI

https://doi.org/10.1016/j.physb.2006.05.407

Publikationsdatum

2006

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/bac6c147-fcf1-43b9-ad1f-5b321eefe757