STM as a single Majorana detector of Kitaev's chiral spin liquid

Abstract

In this letter, we propose a local detection scheme for the Majorana zero mode (MZM) carried by a vison in Kitaev's chiral spin liquid (CSL) using scanning tunneling microscopy (STM). The STM introduces a single Majorana into the system through hole/charge injection and the Majorana interacts with the MZM to form a stable composite object. We derive the exact analytical expression of single-hole Green's function in the Mott insulating limit of Kitaev's model and show that the differential conductance has split peaks, as a consequence of resonant tunneling through the vison-hole composite. The peak splitting scales with the binding energy of vison-hole composite, which is comparable to the Majorana gap in CSL, well within the reach of experimental observation.

6+2 pages, 4 figures

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Cited by in corpus (29)

• Dynamics of visons and thermal Hall effect in perturbed Kitaev models
• Kitaev Quantum Spin Liquids
• Scanning tunneling spectroscopy of Majorana zero modes in a Kitaev spin liquid
• An Exact Chiral Amorphous Spin Liquid
• Non-local spin correlation as a signature of Ising anyons trapped in vacancies of the Kitaev spin liquid
• Thermal anyon interferometry in phonon-coupled Kitaev spin liquids
• Dynamical anyon generation in Kitaev honeycomb non-Abelian spin liquids
• Tunneling spectroscopic signatures of charge doping and associated Mott transition in $\alpha$-RuCl${}_3$ in proximity to graphite
• Magnon Interference Tunneling Spectroscopy as a Probe of 2D Magnetism
• Phonon Dynamics in the Generalized Kitaev Spin Liquid
• Scattering phenomena for spin transport in Kitaev spin liquid
• Field-driven spatiotemporal manipulation of Majorana zero modes in a Kitaev spin liquid
• $Z_2$ flux binding to higher-spin impurities in the Kitaev spin liquid
• Spin Seebeck Effect as a Probe for Majorana Fermions in Kitaev Spin Liquids
• Behavior under magnetic field of resonance at the edge of the upper Hubbard band in 1T-TaS2
• Possible Realization of Kitaev Spin Liquids in van der Waals Heterostructures of $\alpha$-RuCl${}_3$ and Cr$X_3$ ($X$=Cl and I)
• Majorana Gap Formation in the Anisotropic Kitaev Model with Ordered Flux Configuration
• Promising regimes for the observation of topological degeneracy in spin chains
• Electric polarization near vortices in the extended Kitaev model
• Topological Majorana flat bands in the Kitaev model on a Bishamon-kikko lattice
• Real-time control of non-Abelian anyons in Kitaev spin liquid under energy dissipation
• Field-direction Dependence of Majorana-mediated Spin Transport
• Robustness of Vacancy-Bound Non-Abelian Anyons in the Kitaev Model in a Magnetic Field
• Strain-induced Landau levels of Majorana fermions in an anisotropically interacting Kitaev model on a honeycomb lattice
• Time-domain anyon interferometry in Kitaev honeycomb spin liquids and beyond
• Majorana Signatures in Planar Tunneling through a Kitaev Spin Liquid
• Fractional Wannier Orbitals and Tight-Binding Gauge Fields for Kitaev Honeycomb Superlattices with Flat Majorana Bands
• Detecting and Distinguishing Majorana Zero Modes with the Scanning Tunneling Microscope
• Vortex creation and control in the Kitaev spin liquid by local bond modulations