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RESEARCH
AMSTEL ARPES lab
We focus on the experimental investigation of the electronic structure and properties of quantum matter and emergent quantum materials. Our aim is to understand the surprising behaviour of low dimensional and strongly interacting electronic systems, via direct, spectroscopic interrogation of the energy, momentum and spatial distributions of the electronic system. Our current focus includes:
• topological materials such as (magnetic) topological insulators, Dirac and Weyl semimetals
• unconventional superconductors such as the high-Tc cuprates (strange metal state)
• 2D materials, also at the single monolayer limit
• transition metal oxides and their heterointerfaces
We study these using angle-resolved photoemission, soft X-ray absorption and dichroism, hard x-ray photoemission and coherent soft X-ray lensless imaging. To enable these studies, we use high-quality single-crystals of these materials grown in our institute and those of collaborators, fabricate our own 1D and 2D nanostructures in ultrahigh vacuum and collaborate with leading thin film growth laboratories, both in the Netherlands and abroad.
Contact
Prof. Dr. Mark Golden | m.golden@uva.nl
Prof. Dr. Mark Golden | m.golden@uva.nl
Topological quantum materials
Research project 1: magnetic topological insulators
PhD researcher Sergio Barquero Pierantoni works with a focus on magnetic topological insulators, hired on a joint project with our colleague Anna Isaeva and her PhD researchers Katja Kochetkova and Laura Zeni Cunha. The theory group run by Irene Aguilera in the ITFA part of IoP is also closely connected to this research.
Research project 2: Dirac materials
PhD researcher Chrystalla (Crystal) Knekna works with a focus on Dirac materials. Crystal is a shared PhD between the University of Groningen (in the group of Antonija Grubisic-Cabo) and QMat here at UvA-IoP. Crystal’s research is part of the Dutch national QuMat Gravitation consortium (qumat.org).
Strange metals
This is a new PhD project starting soon as part of the NWA Consortium ‘Emergence at all scales’ (https://www.d-iep.org/eaas). The focus of this work will be ARPES and other experiments on what are called strange metals and connection of these data to theories making use of holographic approaches by the PhD researcher Sebastian Bahamondes working in the groups of Koenraad Schalm [Leiden] and Henk Stoof [Utrecht]. Antonija Grubisic-Cabo is also connected to this project, as is Sasha Kordyuk from Kyiv.