Duo Wang's group

Welcome to the webpage of our research group! We are a Quantum Materials Theory and Computational Group within the Faculty of Applied Sciences at Macao Polytechnic University, Macao SAR. Our research currently focuses mainly on magnetic and magnetically related properties in strongly correlated systems.

Using the links above you can find out more about what we do, who we are, and where to find us. If you have any further questions please contact us at duo.wang@mpu.edu.mo.

news

Feb 18, 2025	Yan Suo, Fengyi Zhou, and our collaborators’ paper, titled Achieving Negative Thermal Expansion Over an Extended Temperature Range in Rare Earth-Modified PbTiO$_3$-Based Perovskites, has been accepted for publication in the Springer journal Rare Metals.
Feb 17, 2025	Hi there! We are starting our group website!

selected publications

npj 2D Mater.Appl.

Emergence of polar skyrmions in 2D Janus CrInX3 (X=Se, Te) magnets

Fengyi Zhou, Monirul Shaikh, Weiwei Sun, Feng Chen , Xin Chen, Shu Li, Henry Tong, Biplab Sanyal^*, and Duo Wang^*

npj 2D Materials and Applications, Aug 2024

Abs DOI

In the realm of multiferroicity in 2D magnets, whether magnetic and polar skyrmions can coexist within a single topological entity has emerged as an important question. Here, we study Janus 2D magnets CrInX3 (X=Se, Te) for a comprehensive investigation of the magnetic ground state, magnetic excited state, and corresponding ferroelectric polarization by first-principles electronic structure calculations and Monte Carlo simulations. Specifically, we have thoroughly elucidated the magnetic exchange mechanisms, and have fully exemplified the magnetic field dependence of the magnon spectrum. More importantly, our study reveals a previously unrecognized, remarkably large spin-spiral-induced ferroelectric polarization (up to 194.9 μC/m2) in both compounds. We propose an approach to identify polar skyrmions within magnetic skyrmions, based on the observed direct correlation between spin texture and polarization density. Elucidating this correlation not only deepens our understanding of magnetic skyrmions but also paves the way for innovative research in the realm of multiferroic skyrmions.