Introduction to selected phenomena of quantum transport
CFEL, Hamburg, October 10th-13th, 2016
- (Mon) Introductory remarks on quantum mechanics. Three simple examples:
free particle, particle-in-a-box and the simplest version of a 1D crystal
(tight-binding model). Band structure. Approaches to electron transport:
classical, semiclassical and fully quantum-mechanical. Examples of
low-dimensional systems.
Slides.
Notes on sources.
- (Tue) Remote doping in semiconductor heterostructures. Quantised
conductance in narrow channels (quasi 1D). Landauer formula.
Thermopower (Seebeck effect). Tunneling through quantum dots (QDs).
Coulomb blockade. Bonus: Kondo effect in a QD.
Slides.
Notes on sources.
- (Wed) Aharonov-Bohm effect. Weak localisation, coherence length.
2DEG in perpendicular magnetic field (Landau levels), integer quantum
Hall effect. Insulating regime (quantised transversal resistance),
activated transport. Edge states. Topological insulators (2D). Fractional
quantum Hall effect.
Slides.
Notes on sources.
- (Thu) Superconductivity. Anomalous Hall effect. Spin-orbit
interaction (Rashba effective SOI as an example), Edelstein effect.
Spin-orbit torque for ferromagnets and antiferromagnets. Anisotropic
magnetoresistance. Spin Seebeck effect. Hanle effect. Spin-transfer torque.
Slides.
Notes on sources.