- A paper in Science mistakenly used 'Cr2Gr2Te6' instead of the correct compound 'Cr2Ge2Te6' (germanium, not a fictional element Gr).
- The error has been propagated in multiple subsequent publications (e.g., Nanoscale 2021, book chapter 2023) without correction.
- The typo likely originated from the proximity of 'Ge' and 'Gr' on keyboards and the better visual scan of 'Cr2Gr2'.
- The author warns that AI could perpetuate such errors indefinitely if not caught.
- The correct compound is chromium germanium telluride (Cr2Ge2Te6), a known ferromagnetic material.