Coulomb oscillations in three-layer graphene nanostructures

Coulomb-Blockade Oscillations in Semiconductor Nanostructures

Coulomb-blockade oscillations of the conductance are a manifestation of singleelectron tunneling through a System of two tunnel junctions in series (see Fig. 1) [l]-[5]. The conductance oscillations occur äs the voltage on a nearby gate electrode is varied. This setup is the SET transistor described in See. 6 of Chap. 2. The number N of conduction electrons on an Island (or dot) between two tun...

Towards understanding the superfluid behavior in double layer graphene nanostructures

The unique electronic properties that are found in graphene layers have been touted as an attractive means to not only study fundamental physical principles but to design new types of electronic and optical information processing technologies. Of the physical observables present in graphene which may be exploited for device technologies, the proposed superfluid phase transition of indirectly bo...

Atomic-layer-deposited nanostructures for graphene-based nanoelectronics

Graphene is a hexagonally bonded sheet of carbon atoms that exhibits superior transport properties with a velocity of 108 cm /s and a room-temperature mobility of 15 000 cm2 /V s. How to grow gate dielectrics on graphene with low defect states is a challenge for graphene-based nanoelectronics. Here, we present the growth behavior of Al2O3 and HfO2 films on highly ordered pyrolytic graphite HOPG...

Coulomb impurity in graphene

We consider the problem of screening of an electrically charged impurity in a clean graphene sheet. When electron-electron interactions are neglected, the screening charge has a sign opposite to that of the impurity, and is localized near the impurity. Interactions between electrons smear out the induced charge density to give a largedistance tail that follows approximately, but not exactly, an...

Friedel oscillations at the surfaces of rhombohedral N-layer graphene