Scanning tunneling spectroscopy of magnetic quantum impurities in two-dimensional magnets
arxiv(2024)
Abstract
We study scanning tunneling spectroscopy (STS) of magnetic quantum impurities
in (partially) polarized phases of two-dimensional (2D) van der Waals magnets.
Focusing on the Kitaev-Heisenberg honeycomb model for transition metal
trihalides, e.g., CrI_3 or α-RuCl_3, we consider adatom and
substitutional impurity positions. Unlike the non-magnetic case, magnetic
impurities can induce bound states below the magnon gap, whose energy one can
measured by STS at finite bias voltage. Whenever the bound state energy
vanishes as function of the magnetic field, we predict discontinuous local spin
transitions which are expected to be ubiquitous in 2D magnets. They can be
detected by STS in the zero-bias limit.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined