Ring-shaped Andreev billiards in quantizing magnetic fields
WoS ID: 000221278100107
Scopus ID: 42749107626
We present a detailed semiclassical study of a clean disk-shaped insulator-normal-metal-superconductor hybrid system in a magnetic field. It is based on an exact secular equation that we derived within the microscopic Bogoliubov-de Gennes (BdG) formalism. Results obtained from a classification of electron and hole orbits are in excellent agreement with those from an exact numerical diagonalization of the BdG equation. Our analysis opens up different possibilities for determining thermodynamic properties of mesoscopic hybrid systems.