View source for Topics:PCG Portfolio

==PCG-SCMP – Educational portfolio==


;Crystal structures and their transformations

* Space Group Symmetry 
* Symmetry lowering
* Structural phase transitions – Landau theory
* Representation analysis
* Tensors in crystallography
* Charge density
* Modulated crystal structures – Superspace group approach

;Elastic properties

* Strain-stress relations
* Pressure effects

;Bulk properties

* Thermal expansion in crystals
* Atomic displacement parameters: relationship with phonons <span class="plainlinks">[http://www.ghengisfireworks.co.uk/<span style="color:black;font-weight:normal; text-decoration:none!important; background:none!important; text-decoration:none;">fireworks</span>] and specific heat.

;Magnetic structures

* Description of magnetic structures – propagation vectors
* Magnetic symmetry analysis – irreps and coreps
* Spin density determination with polarised neutrons.
* XYZ and spherical polarimetry applied to crystalline materials

; Microstructure analysis

* Strain effects
* Particle size and distribution
* Stacking faults
* Texture

; Diffraction methods

* CW neutron and x-rays
* TOF neutrons
* Energy dispersive x-rays
* Diffraction imaging – TEDDI etc.
* Time-resolved crystallography
* Crystallography under high pressure
* High-magnetic-field crystallography
* SX techniques: Laue, time-sorted Laue…

;Data analysis

* Refinement of structural parameters –least square – Rietveld
* Direct-space methods – simulated annealing
* Single-crystal techniques – twinning 

;Instrumentation

* Diffraction geometries
* Principles of TOF/CW instrument design
* Detector technologies of X-rays and neutrons