Significant enhancement of ferromagnetism above room temperature in epitaxial 2D van der Waals ferromagnet Fe <sub> 5− <i>δ</i> </sub> GeTe <sub>2</sub> /Bi <sub>2</sub> Te <sub>3</sub> heterostructures
Publication date: 1 Gen 2023
Record value of Curie temperature when the 2D van der Waals Fe 5− δ GeTe 2 , grown by molecular beam epitaxy, is interfaced with the topological insulator Bi 2 Te 3 .