103 citations · 285 across the 13 of their papers we have counts for
13 papers
Polarization and charge-separation of moiré excitons in van der Waals heterostructures
Joakim Hagel, Samuel Brem, Ermin Malic
Twisted transition metal dichalcogenide (TMD) bilayers exhibit periodic moiré potentials, which can trap excitons at certain high-symmetry sites. At small twist angles, TMD lattice…
Quadrupolar Excitons in MoSe Bilayers
Jakub Jasiński, Joakim Hagel, Samuel Brem +11
The quest for platforms to generate and control exotic excitonic states has greatly benefited from the advent of transition metal dichalcogenide (TMD) monolayers and their heterost…
Strain fingerprinting of exciton valley character
Abhijeet Kumar, Denis Yagodkin, Roberto Rosati +13
Momentum-indirect excitons composed of electrons and holes in different valleys define optoelectronic properties of many semiconductors, but are challenging to detect due to their…
Twist Angle Dependence of Exciton Resonances in WSe/MoSe Moiré Heterostructures
Chirag Chandrakant Palekar, Joakim Hagel, Barbara Rosa +7
Van der Waals heterostructures based on TMDC semiconducting materials have emerged as promising materials due to their spin-valley properties efficiently contrived by the stacking-…
Impact of atomic reconstruction on optical spectra of twisted TMD homobilayers
Joakim Hagel, Samuel Brem, Johannes Abelardo Pineiro +1
Twisted bilayers of transition metal dichalcogenides (TMDs) have revealed a rich exciton landscape including hybrid excitons and spatially trapped moiré excitons that dominate the…
Electrically tunable dipolar interactions between layer-hybridized excitons
Daniel Erkensten, Samuel Brem, Raul Perea-Causin +5
Transition-metal dichalcogenide bilayers exhibit a rich exciton landscape including layer-hybridized excitons, i.e. excitons which are of partly intra- and interlayer nature. In th…
Electrical control of hybrid exciton transport in a van der Waals heterostructure
Fedele Tagarelli, Edoardo Lopriore, Daniel Erkensten +9
Interactions between out-of-plane dipoles in bosonic gases enable the long-range propagation of excitons. The lack of direct control over collective dipolar properties has hitherto…
A room-temperature moiré interlayer exciton laser
Qiaoling Lin, Hanlin Fang, Yuanda Liu +10
Moiré superlattices in van der Waals heterostructures offer highly tunable quantum systems with emergent electronic and excitonic properties such as superconductivity, topological…
Interlayer exciton polaritons in homobilayers of transition metal dichalcogenides
Jonas K. König, Jamie M. Fitzgerald, Joakim Hagel +2
Transition metal dichalcogenides integrated within a high-quality microcavity support well-defined exciton polaritons. While the role of intralayer excitons in 2D polaritonics is w…
Electrical tuning of moiré excitons in MoSe bilayers
Joakim Hagel, Samuel Brem, Ermin Malic
Recent advances in the field of vertically stacked 2D materials have revealed a rich exciton landscape. In particular, it has been demonstrated that out-of-plane electrical fields…
The moiré potential in twisted transition metal dichalcogenide bilayers
Christopher Linderälv, Joakim Hagel, Samuel Brem +2
Moiré superlattices serve as a playground for emerging phenomena, such as localization of band states, superconductivity, and localization of excitons. These superlattices are larg…
Exciton landscape in van der Waals heterostructures
Joakim Hagel, Samuel Brem, Christopher Linderälv +2
van der Waals heterostructures consisting of vertically stacked transition-metal dichalcogenides (TMDs) exhibit a rich landscape of bright and dark intra- and interlayer excitons.…
Probing P- and CP-violation in dark matter interactions
Riccardo Catena, Joakim Hagel, Carlos E. Yaguna
Discrete symmetries played a central role in elucidating the structure of the weak interactions, and they will probably be equally crucial regarding the interactions of the dark ma…