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
E. Georgopoulou-Kotsaki, Panagiotis Pappas, Akylas Lintzeris, Polychronis Tsipas, Sotirios Fragkos, Αναστάσιος Μάρκου, Claudia Felser, Emanuele Longo, M. Fanciulli, R. Mantovan, Farzad Mahfouzi, Nicholas Kioussis, A. Dimoulas
Abstract
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 .
Topics & Concepts
Ferromagnetismvan der Waals forceMaterials scienceCondensed matter physicsEpitaxyNanotechnologyChemistryLayer (electronics)PhysicsOrganic chemistryMolecule2D Materials and ApplicationsTopological Materials and PhenomenaGraphene research and applications