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Publications

Preprints

The Instability of a Quantum Superposition of Time Dilations
Louk Rademaker, Tom van der Reep, Nick Van den Broeck, Bob van Waarde, Marc de Voogd, Tjerk Oosterkamp
arXiv:1410.2303 (2024)

Interplay between topology and electron-electron interactions in the moiré MoTe2/WSe2 heterobilayer
Palash Saha, Louk Rademaker, Michał Zegrodnik
arXiv:2412.09170 (2024)

Concealed Mott Criticality: Unifying the Kondo Breakdown and Doped Charge-Transfer Insulators
Louk Rademaker
arXiv:2412.19632 (2024)

Our publications

Pressure-tuned many-body phases through Γ-K valleytronics in moiré bilayer WSe2
Marta Brzezińska, Sergii Grytsiuk, Malte Rösner, Marco Gibertini and Louk Rademaker

2D materials 12 1, 015003 (2025)

Recent experiments in twisted bilayer transition-metal dichalcogenides have revealed a variety of strongly correlated phenomena. To theoretically explore their origin, we combine here ab initio calculations with correlated model approaches to describe and study many-body effects in twisted bilayer…

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Moiré magnetism in CrBr3 multilayers emerging from differential strain
Fengrui Yao, Dario Rossi, Ivo Antoniev Gabrovski, Volodymyr Multian, Nelson Hua, Kenji Watanabe, Takashi Taniguchi, Marco Gibertini, Ignacio Gutierrez Lezama, Louk Rademaker and Alberto Morpurgo

Nature communications 15 1, 10377 (2024)

Interfaces between twisted 2D materials host a wealth of physical phenomena originating from the long-scale periodicity associated with the resulting moiré structure. Besides twisting, an alternative route to create structures with comparably long-or even longer-periodicities is inducing a…

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Topological superconductivity with mixed singlet-triplet pairing in moiré transition metal dichalcogenide bilayers
Waseem Akbar, Andrzej Biborski, Louk Rademaker and Michał Zegrodnik

Physical review. B 110 6, 064516 (2024)

We investigate strong coupling topological superconductivity in twisted moiré bilayer WSe2. Our approach is based on an effective t-J model with displacement-field-dependent complex hoppings, which is treated with the variational Gutzwiller projection method. The calculated phase diagram contains …

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Hall response of locally correlated two-dimensional electrons at low density
Giacomo Arturo Maria Morpurgo, Louk Rademaker, Christophe Berthod and Thierry Giamarchi

Physical review research 6 1, 013112 (2024)

We study the Hall constant in a homogeneous two-dimensional fluid of correlated electrons immersed in a perpendicular magnetic field, with special focus on the regime of low carrier density. The model consists of a one-band tight-binding model and a momentum-independent causal self-energy,…

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Doping a Wigner-Mott insulator: Exotic charge orders in transition metal dichalcogenide moiré heterobilayers
Yuting Tan, Pak Ki Henry Tsang, Vladimir Dobrosavljević and Louk Rademaker

Physical review research 5 4, 043190 (2023)

Recent experiments on TMD heterobilayers show a multitude of charge ordered phases, which are likely Wigner-Mott crystals. In this publication we study what happens if you dope away from the fractional fillings. This leads to yet more variety of exotic charge orders, from “standard” doped…

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Universal Scaling near Band-Tuned Metal-Insulator Phase Transitions
Simone Fratini, Sergio Ciuchi, Vladimir Dobrosavljević and Louk Rademaker

Physical review letters 131 19, 196303 (2023)

We present a theory for band-tuned metal-insulator transitions based on the Kubo formalism. Such a transition exhibits scaling of the resistivity curves, in the regime where Tτ>1 or μτ>1, where τ is the scattering time and μ the chemical potential. At the critical value of the chemical…

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Observation of flat Γ moiré bands in twisted bilayer WSe2
Gianmarco Gatti, Julia Issing, Louk Rademaker, Florian Margot, Tobias A. de Jong, Sense Jan van der Molen, Jérémie Teyssier, Timur K. Kim, Matthew D. Watson, Cephise Cacho, Pavel Dudin, José Avila, Kumara Cordero Edwards, Patrycja Paruch, Nicolas Ubrig, Ignacio Gutierrez Lezama, Alberto Morpurgo, Anna Tamai and Felix Baumberger

Physical review letters 131 4, 046401 (2023)

The recent observation of correlated phases in transition metal dichalcogenide moir\’e systems at integer and fractional filling promises new insight into metal-insulator transitions and the unusual states of matter that can emerge near such transitions. Here, we combine real- and momentum-space…

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Kagome chiral spin liquid in transition metal dichalcogenide moiré bilayers
Johannes Motruk, Dario Rossi, Dmitry Abanin and Louk Rademaker

Physical review research 5 2, L022049 (2023)

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Schwinger boson study of the J1−J2−J3 kagome Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions
Dario Rossi, Johannes Motruk, Louk Rademaker and Dmitry Abanin

Physical review. B 108 14, 144406 (2023)

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Determining spin-orbit coupling in graphene by quasiparticle interference imaging
Lihuan Sun, Louk Rademaker, Diego Mauro, Alessandro Scarfato, Arpad Pasztor, Ignacio Gutierrez Lezama, Zhen Wang, José Martinez Castro, Alberto Morpurgo and Christoph Renner

Nature communications 14 1, 3771 (2023)

Inducing and controlling spin-orbit coupling (SOC) in graphene is key to create topological states of matter, and for the realization of spintronic devices. Placing graphene onto a transition metal dichalcogenide is currently the most successful strategy to achieve this goal, but there is no…

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How to Recognize the Universal Aspects of Mott Criticality?
Yuting Tan, Vladimir Dobrosavljević and Louk Rademaker

Crystals 12 7, 932 (2022)

In this paper we critically discuss several examples of two-dimensional electronic systems displaying interaction-driven metal-insulator transitions of the Mott (or Wigner–Mott) type, including dilute two-dimension electron gases (2DEG) in semiconductors, Mott organic materials, as well as the…

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Spin-orbit coupling in transition metal dichalcogenide heterobilayer flat bands
Louk Rademaker

Physical review. B 105 19, 195428 (2022)

The valence flat bands in transition metal dichalcogenide (TMD) heterobilayers are shown to exhibit strong intralayer spin-orbit coupling. I show that symmetry constrains the spin-dependent complex phase of hopping terms in an effective tight-binding model of the valence flat bands. A perpendicular …

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