They are talking about our metal-organic magnets reported in Science…

Science

Metal-organic magnets with large coercivity and ordering temperatures up to 242°C”, Science, Vol. 370, Issue 6516, pp. 587-592, (2020) – 10.1126/science.abb3861Abstract – Reprint Full text

Lightening the load by Jake Yeston – 10.1126/science.370.6516.543-e

Des aimants légers et performants grâce à la chimie moléculaire” by C. Mathonière and R. Clérac, The Conversation, 11th April 2021 – link

See below other links (167), which discuss our work (in 19 different languages):