Electronic properties in twisted transition metal dichalcogenides in the large Moiré wavelength limit

A flatband emerging from Moiré superlattices, first established in magic-angle twisted bilayer graphene, provides a platform for various correlated states. Twisted transition metal dicalcogendies - on the other hand - allows more tunability, as the Moiré flatbands can exist in a large range of twist angles, and the degeneracy can also be tuned by choosing different materials. Correlated electronic states have been studied in WSe₂/WS₂ heterobilayers and twisted bilayer WSe₂, all with relatively small Moiré wavelengths. Here, we present studies on twisted WSe₂/MoSe₂ bilayers with Moiré wavelengths larger than 10 nm, which gives rise to an even smaller flatband width. We will discuss the observation of a continuum of insulating states and evidence for magnetism through capacitance and transport measurements.