Quasiparticle states and quantum interference induce by magnetic impurities on a two-dimensional topological superconductor

Abstract

We theoretically study the effect of localized magnetic impurities on two-dimensional topological superconductor (TSC). We show that the local density of states (LDOS) can be tuned by the effective exchange field $m$, the chemical potential $\mu$ of TSC, and the distance $\Delta r$ as well as relative spin angle $\alpha$ between two impurities. The changes in $\Delta r$ between two impurities alter the interference and result in significant modifications to the bonding and antibonding states. Furthermore, the bound-state spin LDOS induced by single and double magnetic impurity scattering, the quantum corrals, and the quantum mirages are also discussed. Finally, we briefly compare the impurities in TSC with those in topological insulators.

J. Phys.: Condens. Matter 24, 145502 (2012)

References in corpus (11)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Topological Field Theory of Time-Reversal Invariant Insulators
• Topological Superconductivity in CuxBi2Se3
• Electrically detected interferometry of Majorana fermions in a topological insulator
• Proximity induced superconductivity by Bi in topological $B{i}_{2}T{e}_{2}Se$ and $B{i}_{2}S{e}_3$ films: Evidence for a robust zero energy bound state possibly due to Majorana Fermions
• Quantum impurity spin in Majorana edge fermions

Cited by in corpus (4)

• Gapped Dirac cones and spin texture in thin film topological insulator
• Inelastic magnetic scattering effect on LDOS of topological insulators
• Tunable correlation effects of magnetic impurities by the cubic Rashba spin-orbit couplings
• Magnetic impurities on superconducting Pb surfaces