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Competing zero-field Chern insulators in Superconducting Twisted Bilayer Graphene
Petr Stepanov, Ming Xie, Takashi Taniguchi +5
The discovery of magic angle twisted bilayer graphene (MATBG) has unveiled a rich variety of superconducting, magnetic and topologically nontrivial phases. The existence of all the…
Layer- and Gate-tunable Spin-Orbit Coupling in a High Mobility Few-Layer Semiconductor
D. Shcherbakov, P. Stepanov, S. Memaran +14
Spin-orbit coupling (SOC) is a relativistic effect, where an electron moving in an electric field experiences an effective magnetic field in its rest frame. In crystals without inv…
Measuring local moiré lattice heterogeneity of twisted bilayer graphene
Tjerk Benschop, Tobias A. de Jong, Petr Stepanov +5
We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to large-area topographic images we measure on open-device twisted bilayer graphene (T…
Exciton-exciton interaction beyond the hydrogenic picture in a MoSe monolayer in the strong light-matter coupling regime
Petr Stepanov, Amit Vashisht, Martin Klaas +9
In transition metal dichalcogenides layers of atomic scale thickness, the electron-hole Coulomb interaction potential is strongly influenced by the sharp discontinuity of the diele…
Direct evidence for flat bands in twisted bilayer graphene from nano-ARPES
Simone Lisi, Xiaobo Lu, Tjerk Benschop +21
Transport experiments in twisted bilayer graphene revealed multiple superconducting domes separated by correlated insulating states. These properties are generally associated with…