Seminars Archive

Bridging Instruments and Interfaces: My Experience with Synchrotron and Neutron Scattering Techniques for Nanostructure Research

Andrei Chumakov
PETRA III- DESY, Hamburg

Abstract
The seminar on the position of 'Scientist for Small Angle X-ray Scattering (SAXS) at Elettra' will demonstrate the description of small-angle neutron scattering and synchrotron radiation facilities, together with examples of scientific work on the study of two-dimensional and three-dimensional nanostructures by Dr. Andrei Chumakov. In particular, the results of studies of two-dimensional ordered nanostructures extended in the third direction will be shown using the anodic aluminium oxide membranes and magnetic nanowires based on it, investigated by SANS and SAXS techniques (SANS-2, Hamburg, Germany; BM26, ESRF, France). Examples of the behaviour of magnetic and non-magnetic nano-objects on liquid and solid interfaces using GIWAXS and reflectometry methods on a new eight-axis specialised diffractometer at beamline ID10 (ESRF, France) will be presented. Various examples of nanostructure studies using SAXS/WAXS and GISAXS/GIWAXS methods will be demonstrated in research at the P03 beamline at DESY (Hamburg, Germany). Examples of instrumental work will be shown, including the disassembly and assembly of the SANS-2 neutron beamline, testing of an ultra-compact SAXS synchrotron assembly with variable focal length analysis, and an example of a versatile X-ray reflector extension setup for grazing-incidence experiments at USAXS facilities for liquid surface study. The talk will be supplemented with examples of the author's scientific and biographical stages of research activity.