@article{id_14876, title = "Twenty-three millisecond electron spin coherence of erbium ions in a natural-abundance crystal", author = "Le Dantec, Marianne and Rančić, Miloš and Lin, Sen and Billaud, Eric and Ranjan, Vishal and Flanigan, Daniel and Bertaina, Sylvain and Chanelière, Thierry and Goldner, Philippe and Erb, Andreas and Liu, Ren Bao and Estève, Daniel and Vion, Denis and Flurin, Emmanuel and Bertet, Patrice", journal = "Science Advances", volume = "7", year = "2021", pages = "eabj9786-eabj9786", url = "https://www.doi.org/10.1126/sciadv.abj9786", }