Large-area van der Waals epitaxy and magnetic characterization of Fe3GeTe2 films on graphene
| Autor: | Adriana I. Figueroa, Eugenio Zallo, Dietmar Czubak, Michael Hanke, Manfred Ramsteiner, Charles Guillemard, Sergio O. Valenzuela, Juan Rubio-Zuazo, Jesús López-Sánchez, Manuel Valvidares, J. Marcelo J. Lopes |
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| Přispěvatelé: | European Commission |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Magnetic 2D materials
Van der waals heterostructures Materials science Van der Waals heterostructures FOS: Physical sciences 02 engineering and technology 01 natural sciences law.invention Condensed Matter::Materials Science law 0103 physical sciences Van der waals epitaxy General Materials Science 010306 general physics Condensed Matter - Materials Science Condensed matter physics Graphene Mechanical Engineering Van der Waals epitaxy Materials Science (cond-mat.mtrl-sci) General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Characterization (materials science) Ferromagnetism Mechanics of Materials 0210 nano-technology Molecular beam epitaxy |
| Zdroj: | '2D Materials ', vol: 8, pages: 041001-1-041001-8 (2021) 2D Materials Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2053-1583 |
| Popis: | Scalable fabrication of magnetic 2D materials and heterostructures constitutes a crucial step for scaling down current spintronic devices and the development of novel spintronic applications. Here, we report on van der Waals (vdW) epitaxy of the layered magnetic metal Fe3GeTe2 (FGT) - a 2D crystal with highly tunable properties and a high prospect for room temperature ferromagnetism (FM) - directly on graphene by employing molecular beam epitaxy. Morphological and structural characterization confirmed the realization of large-area, continuous FGT/graphene heterostructure films with stable interfaces and good crystalline quality. Furthermore, magneto-transport and x-ray magnetic circular dichroism investigations confirmed a robust out-of-plane FM in the layers, comparable to state-of-the-art exfoliated flakes from bulk crystals. These results are highly relevant for further research on wafer-scale growth of vdW heterostructures combining FGT with other layered crystals such as transition metal dichalcogenides for the realization of multifunctional, atomically thin devices. They also acknowledge the provision of beamtime under the project HC-4068 at the European Synchrotron Radiation Facility (ESRF), located in Grenoble (France). ICN2 researchers acknowledge support from the European Union Horizon 2020 research and innovation programme under Grant Agreement No. 881603 (Graphene Flagship). |
| Databáze: | OpenAIRE |
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