Our research interests are currently focused on investigating frontier magnetic spin textures and novel spin-correlated phenomena down to atomic scale by spin-polarized scanning tunneling microscopy.

The main topics are categorized as following:

1. Magnetic skyrmions in low-dimensional systems:
A new class of non-collinear magnetic spin textures, e.g., chiral domain wall, spin spiral and magnetic skyrmions etc., has recently received significant amount of attention because of their novel properties in the applications of spintronic devices and magnetic information technology. We are in particular interested in studying magnetic skyrmions in low-dimensional magnetic materials including Neél skyrmions in ultrathin films, Bloch skyrmions in MnSi and FeGe, antiferromagnetic skyrmions in antiferromagnetic materials, antiskyrmions in Heusler compounds and skyrmions with higher nontrivial topolgical numbers etc.
2. Tailoring non-collinear magnetic spin structures:
Artificially engineering and manipulating of magnetic spin structures illustrate an important step toward the realization of prototype design. We are also interested in tailoring non-collinear magnetic spin textures by means of atomic lattice rearrangement and hetero-elements incorporation. In atomic monolayers of films, the surface reconstruction can induce the self-assembled structural network, which can create impact on the non-collinear magnetism due to subtle balance of different interaction energy terms. Another approach is to incorporate hetero-elements into magnetic materials through not only structural displacement, but also electronic hybridization, aiming for tuning the magnetic behaviors in an unconventional manner.
3. Strong spin-orbit coupled materials:
Dzyaloshinskii-Moriya interaction (DMI) plays the crucial role in non-collinear magnetism, which is the consequence of strong spin-orbit coupling with breaking inversion symmetry. Up to date, topological insulators, Weyl semimetals, and Rashba materials etc., possess exotic electronic states and spin chirality in low-dimensional systems. We would like to investigate the corresponding influences on magnetism as well as the spin-correlated phenomena within the framework of this topic.