We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Iron-rich talc as air-stable platform for magnetic two-dimensional materials.
- Authors
Matković, Aleksandar; Ludescher, Lukas; Peil, Oleg E.; Sharma, Apoorva; Gradwohl, Kevin-P.; Kratzer, Markus; Zimmermann, Maik; Genser, Jakob; Knez, Daniel; Fisslthaler, Evelin; Gammer, Christoph; Lugstein, Alois; Bakker, Ronald J.; Romaner, Lorenz; Zahn, Dietrich R. T.; Hofer, Ferdinand; Salvan, Georgeta; Raith, Johann G.; Teichert, Christian
- Abstract
Intrinsically magnetic layered materials – especially monolayers – suffer from the lack of ambient stability and mostly exhibit magnetic ordering only at cryogenic temperatures. These restrains impose a great challenge for the integration of two-dimensional magnetic materials into future technologies. We propose to overcome this by exploiting phyllosilicates, such as iron-rich talc. Via combined magnetic force microscopy in applied external magnetic fields, superconducting quantum interference device magnetometry, first-principle calculations, and structural analysis, we demonstrate that incorporated iron ions in talc are in a very robust high spin state, resulting in a weak ferromagnetic behavior at room temperature. Iron-rich talc can be thinned down to a monolayer, remaining fully stable under ambient conditions, and retaining magnetic properties even in monolayers. Finally, we propose iron-rich end members of the phyllosilicates as very promising platforms for air-stable magnetic monolayers.
- Subjects
MAGNETIC materials; SUPERCONDUCTING quantum interference devices; TALC; MAGNETIC force microscopy; IRON ions
- Publication
NPJ 2D Materials & Applications, 2021, Vol 5, Issue 1, p1
- ISSN
2397-7132
- Publication type
Article
- DOI
10.1038/s41699-021-00276-3