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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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Gate‐Controlled Magnetotransport and Electrostatic Modulation of Magnetism in 2D Magnetic Semiconductor CrPS4
Fan Wu, Marco Gibertini, Kenji Watanabe, Takashi Taniguchi, Ignacio Gutierrez Lezama, Nicolas Ubrig and Alberto Morpurgo

Advanced materials, 2211653 (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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Electronic structure of few-layer black phosphorus from μ-ARPES
Florian Margot, Simone Lisi, Irène Cucchi, Edoardo Cappelli, Andrew Scott Hunter, Ignacio Gutierrez Lezama, KeYuan Ma, Fabian von Rohr, Christophe Berthod, Francesco Petocchi, Samuel Poncé, Nicola Marzari, Marco Gibertini, Anna Tamai, Alberto Morpurgo and Felix Baumberger

Nano letters 23, 6433 (2023)

Black phosphorus (BP) stands out among two-dimensional (2D) semiconductors because of its high mobility and thickness dependent direct band gap. However, the quasiparticle band structure of ultrathin BP has remained inaccessible to experiment thus far. Here we use a recently developed laser-based…

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Full Control of Solid‐State Electrolytes for Electrostatic Gating
Chuanwu Cao, Margherita Melegari, Marc Philippi, Daniil Domaretskiy, Nicolas Ubrig, Ignacio Gutierrez Lezama and Alberto Morpurgo

Advanced materials, 2211993 (2023)

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Light sources with bias tunable spectrum based on van der Waals interface transistors
Hugo Henck, Diego Mauro, Daniil Domaretskiy, Marc Philippi, Shahriar Memaran, Wenkai Zheng, Zhengguang Lu, Dmitry Shcherbakov, Chun Ning Lau, Dmitry Smirnov, Luis Balicas, Kenji Watanabe, Takashi Taniguchi, Vladimir I. Fal’ko, Ignacio Gutierrez Lezama, Nicolas Ubrig and Alberto Morpurgo

Nature communications 13 1, 3917 (2022)

Light-emitting electronic devices are ubiquitous in key areas of current technology, such as data communications, solid-state lighting, displays, and optical interconnects. Controlling the spectrum of the emitted light electrically, by simply acting on the device bias conditions, is an important…

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Probing Magnetism in Exfoliated VI3 Layers with Magnetotransport
David Soler Delgado, Fengrui Yao, Dumitru Dumcenco, Enrico Giannini, Jiaruo Li, Connor A. Occhialini, Riccardo Comin, Nicolas Ubrig and Alberto Morpurgo

Nano letters, 2c01361 (2022)

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Quenching the bandgap of two-dimensional semiconductors with a perpendicular electric field
Daniil Domaretskiy, Marc Philippi, Marco Gibertini, Nicolas Ubrig, Ignacio Gutierrez Lezama and Alberto Morpurgo

Nature nanotechnology (2022)

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Quasi 1D Electronic Transport in a 2D Magnetic Semiconductor
Fan Wu, Ignacio Gutierrez Lezama, Sara A. Lopéz‐Paz, Marco Gibertini, Kenji Watanabe, Takashi Taniguchi, Fabian Oliver Von Rohr, Nicolas Ubrig and Alberto Morpurgo

Advanced materials, 2109759 (2022)

We investigate electronic transport through exfoliated multilayers of CrSBr, a 2D semiconductor that is attracting attention because of its magnetic properties. We find an extremely pronounced anisotropy that manifests itself in qualitative and quantitative differences of all quantities measured…

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Dynamic magnetic crossover at the origin of the hidden-order in van der Waals antiferromagnet CrSBr
Sara Almudena Lopez Paz, Zurab Guguchia, Vladimir Y. Pomjakushin, Catherine Witteveen, Antonio Cervellino, Hubertus Luetkens, Nicola Casati, Alberto Morpurgo and Fabian von Rohr

Nature communications 13 1, 4745 (2022)

The van-der-Waals material CrSBr stands out as a promising two-dimensional magnet. Here, we report on its detailed magnetic and structural characteristics. We evidence that it undergoes a transition to an A-type antiferromagnetic state below T N ≈ 140 K with a pronounced…

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Optoelectronic Phenomena in 2D Materials and Heterostructures
Daniil Domaretskiy

Thèse, 148 (2022)

2-dimensional (2D) materials have stunned the scientific community and have triggered immense interest due to their unique optoelectronic properties. These properties strongly depend on the thickness of 2D layers and can be controlled by an externally applied voltage providing experimental…

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