Publication – Rademaker Group

Theory of twisted mono-bilayer graphene with spin-orbit coupling

loukrademaker — Sun, 15 Mar 2026 08:46:56 +0000

Earlier we predicted the quantum Anomalous Hall effect in twisted mono-bilayer graphene (tMBG), and we showed how spin-orbit coupling can be induced in graphene by placing it on top of a TMD. The next natural step is to study the combination of these two: what happens to tMBG when spin-orbit coupling is induced? In collaboration with Jeyong Park from the research group of Laura Classen and…

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Angular momentum of vortex-core Majorana zero modes

Giulia Venditti — Fri, 16 Jan 2026 13:53:12 +0000

We recently published a paper reporting that vortex-core Majorana zero modes (MZMs) can carry a nontrivial angular momentum. We study a modified Fu-Kane model, with a d+id superconducting order parameter on top of a strong topological insulator. We found non-trivial spin and angular-momentum textures, resulting in the emergence of four “flavors” of Majorana zero modes (MZMs). We classify the MZMs…

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Concealed Mott Criticality: Unifying the Kondo Breakdown and Doped Charge-Transfer Insulators

loukrademaker — Thu, 02 Jan 2025 09:54:55 +0000

The field of strongly correlated physics revolves, traditionally, around two classes of materials: the heavy fermions and the cuprates. In both, there are signatures of a quantum critical point (QCP). The main features of both these QCPs can be understood by a simple picture of having a Mott localization transition in the presence of additional metallic charge carriers. In a new manuscript…

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Topological superconductivity with mixed singlet-triplet pairing in moiré TMD bilayers

loukrademaker — Sat, 09 Mar 2024 09:26:10 +0000

We studied, in collaboration with the group of Michał Zegrodnik in Krakow, Poland, the possibility of correlation-induced superconductivity in twisted bilayer WSe2. Using a Gutzwiller approximation, we found a very unconventional superconducting order parameter: a mixed singlet-triplet p+ip d-id superconductor! Read more in our arXiv paper: Topological superconductivity with mixed singlet-triplet pairing in moiré transition-metal-dichalcogenide … Continued

Hall response of locally-correlated two-dimensional electrons at low density

loukrademaker — Mon, 23 Oct 2023 07:16:03 +0000

We just published on the arXiv our latest manuscript, in collaboration with the group of Thierry Giamarchi. We develop the Kubo formalism equations of the Hall response in a 2d conductor, which allows us to go to study correlated electron liquids at low densities. Surprisingly, we found an enormous enhancement of the Hall response. Title: Hall response of locally-correlated two…

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