Renormalization of the Majorana bound state decay length in a perpendicular magnetic field
arXiv:1711.06643 · doi:10.1103/PhysRevB.97.045419
Abstract
Orbital effects of a magnetic field in a proximitized semiconductor nanowire are studied in the context of the spatial extent of Majorana bound states. We develop analytical model that explains the impact of concurring effects of paramagnetic coupling of the nanowire bands via the kinetic energy operator and spin-orbit interaction on the Majorana modes. We find, that the perpendicular field, so far considered as to be detrimental to the Majorana fermion formation, is in fact helpful in establishing the topological zero-energy-modes in a finite system due to significant decrease in the Majorana decay length.
References in corpus (10)
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
- Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
- Epitaxy of Semiconductor-Superconductor nanowires
- Hard gap in epitaxial semiconductor-superconductor nanowires
- A Majorana smoking gun for the superconductor-semiconductor hybrid topological system
- Strong localization of Majorana end states in chains of magnetic adatoms
- Transparent Semiconductor-Superconductor Interface and Induced Gap in an Epitaxial Heterostructure Josephson Junction
- Robustness of Majorana bound states in the short junction limit
- Majorana states and magnetic orbital motion in planar hybrid nanowires