New form of magnetism in four-layer twisted 2D chromium iodide produces stable skyrmions, for ultra‑dense data storage

https://www.eurekalert.org/news-releases/1115520

"skyrmions: tiny, stable magnetic patterns that could serve as ultra‑small carriers of storage data... the newly discovered magnetic states in twisted 2D materials are promising because: they could enable very high‑density data storage... skyrmion magnetic structures are stable against disturbances, which is crucial for reliable memory devices... signals were extremely weak, overcome using quantum sensing microscope based on nitrogen‑vacancy centers in diamond"