Quantum Materials and Devices
The research in Quantum Materials and Devices explores novel charge, spin, and orbital phenomena in quantum materials and devices, focusing on steady-state and ultrafast dynamics to unlock their potential for energy-efficient electronics, computing, and catalytic applications.
We fabricate devices using state-of-the-art thin film growth and nanofabrication techniques such as electron beam lithography. The quantum materials that we investigate include atomically thin crystals such as graphene, 2D semiconductors (MoS2, MoSe2, WS2), 2D insulators (hBN) and 2D magnets (FGT, CrI3).
We employ in house capabilities such as sputtering and CVD growth techniques some of these crystals, as well their novel van der Waals heterostructures. Fundamentally we employ electrons and light to probe these phenomena. These include low temperature charge and spin transport measurements (down to 4.2 and mK temperatures), magneto-optic optic Kerr effect (up to 4.2 K) using cutting edge measurement instrumentation in the newly developing quantum-lab.
We employ X-ray magnetic circular dichroism (XMCD), X-ray photoelectron spectroscopy (XPS), X-ray ferromagnetic resonance (X-FMR) and time-resolved transverse magneto-optic Kerr effect (T-MOKE) with IR pump and EUV probe (as well as all-optical method) for ultrafast charge and spin dynamics.
Contact
- Research Group Leaders
- Venkata Kamalakar Mutta
- Håkan Rensmo
- Olof Karis