Diffraction methods2018-08-13T14:40:43+02:00

Diffraction Methods

Diffraction is the tool for determining atomic and molecular structure of crystalline materials. Materials ordered in regular crystal lattices scatter X-ray in specific directions giving rice to a pattern containing information of the specific structure of the material. By measuring the intensity and scattering direction of X-rays, diffraction offers a way to study material on the smallest length scales.

Diffraction can be performed on single crystals, crystalline powders, nanoparticles and thin films. The precise measurement of atomic structure makes it possible to characterize samples on the atomic level as well as to track changes in materials e.g. due to heat, aging, corrosion or other stresses the sample has been exposed to.

Materials with crystalline properties are forming a huge group of the materials we surround ourselves with – everything from metals and ice to paint and some plastics – and their structure are often crucial for their performance.

A single crystal scatters X-rays (or neutrons) in discrete directions. The intensities of these diffracted beams are used to solve the atomic structure.

A powder consisting of a huge number of small crystals will give rise to concentric cones of scattered radiation. Often the data are reduced to a plot of intensity as a function of scattering angle, which can be used for identification and/or structural refinement.

The AU-CMC team

Diffraction technique in LINX projects is handled by the research team at Center for Materials Crystallography, led by professor Bo Brummerstedt Iversen. The research center holds world-leading competences in synthesis, characterization and theoretical modelling of materials. The in-house facilities include several different diffractometers and the possibility to study samples under e.g. heating.

Bo Brummerstedt Iversen
Bo Brummerstedt IversenLINX Scientific Director, Professor
Aarhus University, Dept. of Chemistry & iNANO
Center for Materials Crystallography
Langelandsgade 140, building 1512, 312
8000 Aarhus C

E-mail: bo@chem.au.dk
Tel.: +45 8715 5982 or +45 2778 2887

Birgitte Lodberg Pedersen
Birgitte Lodberg PedersenLINX Branch Manager, Ph.D.
Aarhus University, Carbon Dioxide Activation Center (CADIAC)
Gustav Wieds Vej 14, bygning 1590, 344
8000 Aarhus C

E-mail: blp@inano.au.dk
Tel.: +45 2618 5206

Jonas Palle
Jonas PalleLINX Project Leader, MSc
Aarhus University, Dept. of Chemistry & iNANO
Center for Materials Crystallography
Langelandsgade 140, building 1511, 331
8000 Aarhus C

E-mail: jonaspalle@inano.au.dk
Tel.: +45 2278 9618

Read more about The LINX Team.