The teaching will consist in the sending of document, data, exercises, and in interactive help. The student is expected to return his own solutions to the exercises, and will receive the needed corrections back.
The course may start at any time for each individual student, as soon as the fees are received.
The program includes :
Qualitative aspects of crystallographic textures: effects on diffraction diagrams, limitations of classical diagrams (theta-2theta, asymetric, rocking curves), representations of texture (pole figures), localisation of crystallographic directions from pole figures, pole figure types, pole figure and orientation spaces).
Experimental aspects: x-ray generators and neutron guides, diffractometers and detectors, effects of the incident beam optical quality and instrumental resolution, scan strategies, penetration depths, data corrections (volume, absorption, localisation fluorescence, defocusing) and correction factors.
Normalisation: distribution densities, normalisation strategies
ODF calculation: Orientation space completion, orientation distribution formalisms and some limitations, orientation distribution refinement by WIMV, inverse pole figures.
Caracterisation of epitaxy: quantitative volumic fractions, epitaxial relationships and mismatch parameters, coincidence and near-coincidence site lattices.
Simulation of theoretical pole figures and orientation distributions.
Texture signatures: on physical properties (anisotropic magnetisation curves, elastic macroscopic constants, anisotropic velocities), on spectroscopic characterisation methods.
Poorly or partly crystallised materials.
Materials with big grains: statistical problems
Texture determination by full diagram analysis (integration method, individual fits, initiation to the combined approach).