February 28, 2026 to March 6, 2026
Europe/Berlin timezone

Pressure tuning of van der Waal crystal based devices

Not scheduled
20m
Invited Talk

Speaker

Szabolcs Csonka (assoc. prof.)

Description

Van der Waals heterostructures offer unprecedented control in materials science by enabling atomic-scale stacking of metals, insulators, superconductors, and magnetic materials—optionally with tailored twist angles. The electronic properties of these systems are highly sensitive to interlayer tunnel coupling, which can be tuned by modifying the layer spacing using hydrostatic pressure. In this talk, I will present transport measurements performed with a unique pressure-cell platform capable of probing wire-bonded devices up to 2.5 GPa. I will discuss how pressure enhances proximity-induced spin–orbit coupling in TMDC–graphene heterostructures, modifies the band structure in twisted graphene, alters colossal magnetoresistance in the antiferromagnet CrSBr, and affects topological phases in 2D crystals such as MnBi₂Te₄. These results highlight pressure as a powerful tool for engineering electronic states in van der Waals materials.

Authors

Albin Marffy (Department of Physics, Budapest University of Technology and Economics) Dr Bálint Szentpéteri (Budapest University of Technology and Economics) Zoltan Kovacs-Krausz (Department of Physics, Budapest University of Technology and Economics) Ms Margarita Rahimkulov (Budapest University of Technology and Economics) Mr Roland Tóth (Budapest University of Technology and Economics) Dr Bálint Fülöp (Budapest University of Technology and Economics) Endre Tóvári (Budapest University of Technology and Economics (Hungary)) Péter Makk (Budapest University of Technology and Economics) Szabolcs Csonka (assoc. prof.)

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