K. Bagani

TL;DR: The importance of θ disorder as an unconventional type of disorder enabling the use of twist-angle gradients for bandstructure engineering, for realization of correlated phenomena and for gate-tunable built-in planar electric fields for device applications is established.

TL;DR: In this article, the authors used a scanning nanoSQUID-on-tip to obtain tomographic imaging of the Landau levels in the quantum Hall state in twisted bilayer graphene (MATBG) transport devices, which provides a highly sensitive probe of the charge disorder and of the local band structure determined by the local twist angle.

TL;DR: A scanning nanoscale thermometer reveals the mechanism for energy dissipation in ultrapure samples of graphene and visualizes and controlled phonon emission from individual atomic-scale defects in graphene.

TL;DR: A cyclic voltammetric study suggests that S1 can act as a good electrical double layer capacitor (EDLC) above a scan rate of 0.04 V s (-1) while S2 exhibits excellent performance as EDLC in a scan range from 0.01 to 0.06 V s(-1).

TL;DR: In this article, the microscopic quantum Hall edge currents and the equilibrium currents that generate the magnetic monopoles in time-reversal-symmetry-broken topological matter are directly imaged in the quantum Hall state in graphene by using a SQUID-on-tip.