5 papers
Exchange energy of the ferromagnetic electronic ground-state in a monolayer semiconductor
Nadine Leisgang, Dmitry Miserev, Hinrich Mattiat +6
Mobile electrons in the semiconductor monolayer-MoS form a ferromagnetic state at low temperature. The Fermi sea consists of two circles, one at the -point, the other at the…
Capacitively-coupled and inductively-coupled excitons in bilayer MoS
Lukas Sponfeldner, Nadine Leisgang, Shivangi Shree +10
The interaction of intralayer and interlayer excitons is studied in a two-dimensional semiconductor, homobilayer MoS. It is shown that the measured optical susceptibility revea…
Giant Stark splitting of an exciton in bilayer MoS
Nadine Leisgang, Shivangi Shree, Ioannis Paradisanos +10
Transition metal dichalcogenides (TMDs) constitute a versatile platform for atomically thin optoelectronics devices and spin-valley memory applications. In monolayers optical absor…
First-order magnetic phase-transition of mobile electrons in monolayer MoS
Jonas Gaël Roch, Dmitry Miserev, Guillaume Froehlicher +7
Evidence is presented for a first-order magnetic phase transition in a gated two-dimensional semiconductor, monolayer-MoS. The phase boundary separates a spin-polarised (ferrom…
Ballistic and resonant negative photocurrents in semiconducting carbon nanotubes
Christoph Karnetzky, Lukas Sponfeldner, Max Engl +1
Ultrafast photocurrent experiments are performed on semiconducting, single-walled carbon nanotubes under a resonant optical excitation of their subbands. The photogenerated exciton…