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Showing 1–5 of 5 results

Advanced filters: Author: Sergi Batlle-Porro Clear advanced filters

Photovoltage microscopy of symmetrically twisted trilayer graphene

A proposed theoretical explanation for the electronic behaviour of moiré graphene is the coexistence of light and heavy electrons. Now local thermoelectric measurements hint that this model could be accurate.

Sergi Batlle Porro
Dumitru Călugăru
Frank H. L. Koppens
Research20 Nov 2025
Nature Physics

Volume: 21, P: 1934-1941
Author Correction: Terahertz photocurrent probe of quantum geometry and interactions in magic-angle twisted bilayer graphene

Roshan Krishna Kumar
Geng Li
Frank H. L. Koppens
Amendments and Corrections01 Apr 2025
Nature Materials

Volume: 24, P: 978
Terahertz photocurrent probe of quantum geometry and interactions in magic-angle twisted bilayer graphene

Exploiting the intrinsic response of magic-angle twisted bilayer graphene to resonant terahertz radiation, the interplay between electron interactions and quantum geometry is studied in such flat-band systems.

Roshan Krishna Kumar
Geng Li
Frank H. L. Koppens
Research24 Mar 2025
Nature Materials

Volume: 24, P: 1034-1041
Cryogenic nano-imaging of second-order moiré superlattices

Second-order superlattices emerging in magic-angle twisted bilayer graphene aligned with hexagonal boron nitride are visualized in real space through cryogenic nano-imaging, revealing the impact of strain and twist-angle variations.

Niels C. H. Hesp
Sergi Batlle-Porro
Frank H. L. Koppens
Research10 Sept 2024
Nature Materials

Volume: 23, P: 1664-1670
All-optical seeding of a light-induced phase transition with correlated disorder

Controlling phase transitions in solids is crucial for many applications. Ultrafast laser pulses have now been shown to enable the energy-efficient generation of structural fluctuations in VO₂ by harnessing the correlated disorder in the material.

Allan S. Johnson
Ernest Pastor
Simon E. Wall
Research11 Apr 2024
Nature Physics

Volume: 20, P: 970-975