Transport and subgap states in superconducting heterostructures of effective Dirac systems
by Jacob Fuchs
Paperback (Published)
(December 2022)
ISBN: 9783868451719
Price: $66.00
On back order
Two prominent examples of effective Dirac systems in solid state physics-systems whose dispersion can effectively be described by a Dirac cone-are graphene and topological insulators. This work deals with superconducting heterostructures of these materials, and examines transport phenomena as well as the formation of sub-gap states in such systems.
This thesis deals with superconducting heterostructures of both of the aforementioned materials and examines transport phenomena as well as the formation of subgap states in such systems: In the first chapter, superconducting bilayer graphene with a chemisorbed adatom is investigated and the existence of peculiar subgab states, so-called Yu-Shiba-Rusinov states, is shown. The second chapter deals with T junction devices make out of three-dimensional (3D) TI nanowires. Together with proximity induced superconductivity in one arm and external magnetic fields, this setup allows for the occurence of crossed Andreev reflection, including perfect crossed Andreev reflection, and negative nonlocal conductances. In the third chapter, Josephson junctions of 3D TI nanowires are investigated. The origin of unusual, experimentally observed supercurrent oscillations in dependence of a parallel magnetic field is examinated in a semiclassical analysis.
- By (author) Jacob Fuchs
Other Titles in this Series
The Semiclassical Approach to Open Quantum Systems Beyond the Weak Coupling Regime
Quantum-classical transition and many-body interference
