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Infrared-to-violet tunable optical activity in atomic films of GaSe, InSe, and their heterostructures
Daniel J. Terry, Viktor Zólyomi, Matthew Hamer +11
Two-dimensional semiconductors - atomic layers of materials with covalent intra-layer bonding and weak (van der Waals or quadrupole) coupling between the layers - are a new class o…
High quality factor graphene-based 2D heterostructure mechanical resonator
M. Will, M. Hamer, M. Müller +6
Ultralight mechanical resonators based on low-dimensional materials are well suited as exceptional transducers of minuscule forces or mass changes. However, the low dimensionality…
Optical second harmonic generation in encapsulated single-layer InSe
Nadine Leisgang, Jonas G. Roch, Guillaume Froehlicher +4
We report the observation of optical second harmonic generation (SHG) in single-layer indium selenide (InSe). We measure a second harmonic signal of under…
Gate-Defined Quantum Confinement in InSe-based van der Waals Heterostructures
Matthew Hamer, Endre Tóvári, Mengjian Zhu +13
Indium selenide, a post-transition metal chalcogenide, is a novel two-dimensional (2D) semiconductor with interesting electronic properties. Its tunable band gap and high electron…