Moiré band structure engineering using a twisted boron nitride substrate
Not provided.
Science & Technology - Other Topics↗
Engineering topics
Aronson, Samuel
Publications and source records attributed to Aronson, Samuel.
Correlated Double-Electron Additions at the Edge of a Two-Dimensional Electronic System
We create laterally large and low-disorder GaAs quantum-well-based quantum dots that act as small two-dimensional electron systems. We monitor tunneling of single electrons to the dots by means of capacitance measurements and identify single-electron capacitance peaks in the addition spectrum from occupancies of one up to thousands of electrons. The data show two remarkable phenomena in the Landau level filling factor range ν = 2 to ν = 5 in selective probing of the edge states of the dot: (i) Coulomb blockade peaks arise from the entrance of two electrons rather than one; (ii) at and near ν = 5/2 and at fixed gate voltage, these double-height peaks appear uniformly in a magnetic field with a flux periodicity of h/2e, but they group into pairs at other filling factors.
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND↗