English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Recently, the real topology has been attracting widespread interest in twodimensions (2D). Here, based on first-principles calculations and theoreticalanalysis, we reveal the monolayer Cr$_2$Se$_2$O (ML-CrSeO) as the firstmaterial example of a 2D antiferromagnetic (AFM) real Chern insulator (RCI)with topologically protected corner states. Unlike previous RCIs, we find thatthe real topology of the ML-CrSeO is rooted in one certain mirror subsystem ofthe two spin channels, and can not be directly obtained from all the valencebands in each spin channel as commonly believed. In particular, due toantiferromagnetism, the corner modes in ML-CrSeO exhibit strongcorner-contrasted spin polarization, leading to spin-corner coupling (SCC).This SCC enables a direct connection between spin space and real space.Consequently, large and switchable net magnetization can be induced in theML-CrSeO nanodisk by electrostatic means, such as potential step and in-planeelectric field, and the corresponding magnetoelectric responses behave like asign function, distinguished from that of the conventional multiferroicmaterials. Our work considerably broadens the candidate range of RCI materials,and opens up a new direction for topo-spintronics and 2D AFM materialsresearch.

Hidden Real Topology and Unusual Magnetoelectric Responses in Monolayer Antiferromagnetic Cr$_2$Se$_2$O