August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【205】Probing magnetism of iron-rich phyllosilicates: semi-quantitative Magnetic Force Microscopy of 2D-van der Waals magnets in the monolayer limit

Aug 31, 2021, 2:30 PM
Room C

Room C

Talk Surfaces, Interfaces and Thin Films Surfaces, Interfaces and Thin Films


Lukas Ludescher (Montanuniversität Leoben)


Layered silicate minerals, so-called phyllosilicates, were recently proposed as naturally occuring sources of 2D van der Waals (vdW) materials. Iron-rich members of the phyllosilicate family, were previously investigated for their magnetic properties and exhibit long-range magnetic ordering. However, probing the magnetism of 2D vdW magnets, especially in the monolayer limit, is challenging. To determine their magnetic response, we performed Magnetic Force Microscopy on mono- and multilayer flakes of several iron-rich phyllosilicates prepared on SiO2/SiO-substrates. By executing these measurements in external magnetic fields, we were able to semi-quantitatively measure the magnetic response of these materials in dependence of the applied field down to the monolayer limit.

Primary author

Lukas Ludescher (Montanuniversität Leoben)


Oleg Peil (Université de Genève) Mr Apoorva Sharma (Chemnitz University of Technology) Mr Kevin Gradwohl Markus Kratzer (MUL) Prof. Dietrich Zahn (Chemnitz University of Technology) Prof. Georgeta Salvan (Chemnitz University of Technology) Prof. Johann Raith (Chair of Resource Mineralogy Montanuniversität Leoben) Christian Teichert (Institute of Physics, Montanuniversitaet Leoben, Franz-Josef-Str. 18, A-8700 Leoben, Austria) Dr Aleksandar Matkovic (University of Leoben)

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