Gwybodaeth Modiwlau
Course Delivery
| Delivery Type | Delivery length / details |
|---|---|
| Lecture | 10 x 2 hour lectures |
| Practical | 1 x 1 hour in small groups |
Assessment
| Assessment Type | Assessment length / details | Proportion |
|---|---|---|
| Semester Exam | 2 Hours examination | 70% |
| Semester Assessment | One example sheet | 20% |
| Semester Assessment | 10 Hours Diffraction practical and report | |
| Supplementary Assessment | Resit failed component | 100% |
Learning Outcomes
On successful completion of this module students should be able to:
Explain and apply the concept of reciprocal space.
Describe experimental techniques such as phonon spectroscopy and diffraction.
Distinguish material classes such as crystals, polymers, liquids, and glasses according to their structure
Analyse crystallographic data and interpret them in terms of structural symmetry.
Discuss the relationship between experiment and modelling in science in general and condensed matter physics in particular.
Explain the origin of band structure and relate it to the electric properties of materials.
Brief description
This course will provide the physics behind the structural and magnetic properties of materials. Starting from descriptions of crystal structures and symmetry, the thermal properties of lattices are discussed.The magnetic properties of materials will be discussed in detail. The module includes sections about relevant experimental techniques such as x-ray diffraction and phonon spectroscopy.
Aims
This module will equip students with the concepts needed to interpret and predict the properties of solids in terms of their structure. They will be introduced to a number of experimental techniques to determine structure and will be able to interpret structural data in terms of crystal symmetry and defects.
Content
General description of crystal structures
Important crystal structures
Lattice planes and miller indices
General Diffraction theory
The reciprocal lattice
Bragg and Laue theory
The Ewald construction
Symmetry elements and space groups
Thermal properties of crystal lattices
Lattice vibrations
A simple oscillator
Infinite chains of atoms
The Brillouin zone
Heat capacity
The Debye model
The Einstein model
Phonon spectroscopy
Magnetic states of matter
Magnetism
Magnetic effects in atoms
Diamagnetism
Paramagentism
Magnetic ordering
Ferromagnetic domains
Other collective phenomena
Notes
This module is at CQFW Level 6