Tuning Structure and Magnetism in Large-Scale 2D Ferromagnet Fe3GeTe2 through Ni Doping
This study demonstrates that controlled Ni doping in large-scale Fe3GeTe2 epitaxial films, achieved via molecular beam epitaxy, induces lattice contraction and a dual substitution-intercalation mechanism that significantly suppresses perpendicular magnetic anisotropy and drastically lowers the Curie temperature to 50 K, with experimental findings corroborated by density functional theory calculations.
Kacho Imtiyaz Ali Khan, Tauqir Shinwari, Soheil Ershadrad, Majid Ahmadi, Weiben Li, Hua Lv, Frans Munnik, Adriana I. Figueroa, Manuel Valvidares, Sandra Ruiz-Gómez, Lucia Aballe, Jens Herfort, Micha (…)2026-04-15🔬 cond-mat.mtrl-sci