Physics and astronomy

Condensed State Physics

Module code: F3230
Level 6
15 credits in autumn teaching
Teaching method: Lecture, Class
Assessment modes: Coursework, Unseen examination

Topics covered on this module include:

Classification of solids

  1. Types of solids; classification of elements and compounds by physical properties
  2. Types of bonding
  3. Basic band theory of metals, electrical insulators and semiconductors

Crystal structures

  1. Crystals; unit cells and lattice parameters
  2. Bravais lattices; crystallographic basis; crystal axes and planes
  3. Cubic and hexagonal structures
  4. Reciprocal lattice

Diffraction by crystals

  1. Physical processes; Braggs law; atomic and geometrical scattering factors
  2. Diffraction crystallography

Lattice vibrations

  1. Thermal properties of electrical insulators: specific heat and thermal conductivity
  2. Vibrations of monatomic and diatomic 1-D crystals; acoustic and optical modes
  3. Quantisation of lattice vibrations; phonons
  4. Einstein and Debye models for lattice specific heat

The free electron model

  1. Classical free electron gas
  2. Quantised free electron model
  3. Specific heat of the conduction electrons
  4. Electrical and thermal conductivity of metals
  5. AC conductivity and optical properties of metals

Dielectric and optical properties of insulators

  1. Dielectric constant and polarisability
  2. Sources of polarisability; dipolar dispersion.

Module learning outcomes

  • Have the ability to classify solids according to their structures and their electrical, thermal and mechanical properties
  • Demonstrate an understanding of the underlying relationships between the macroscopic properties of a solid and the characteristics of the individual atoms which comprise it.