Tuning flexoelectricty and electronic properties of zig-zag graphene nanoribbons by functionalization

Role of random edge-disorder on the transport properties of ultra-thin zig-zag graphene nanoribbons

We report on an introductory study used to gauge the significance of random weakedge disorder on the coherent transport properties of ultra-thin zig-zag nanoribbons (ZGNRs) beyond the simple (i.e., first nearest-neighbour) tight-binding approximation. Such extensions include up to third nearest-neighbour hopping in an extended tight-binding model, as well as a mean-field Hubbard-U . The effect ...

Tuning the deposition of molecular graphene nanoribbons by surface functionalization.

We show that individual, isolated graphene nanoribbons, created with a molecular synthetic approach, can be assembled on functionalised wafer surfaces treated with silanes. The use of surface groups with different hydrophobicities allows tuning the density of the ribbons and assessing the products of the polymerisation process.

Tuning the magnetic and electronic properties of bilayer graphene nanoribbons on Si(001) by bias voltage

Tuning electronic and magnetic properties of zigzag graphene nanoribbons by large-scale bending

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Magnetic Properties of Zig - Zag Ladders ∗

We analyze the phase diagram of a system of spin-1/2 Heisenberg antiferromagnetic chains interacting through a zigzag coupling, also called zigzag ladders. Using bosonization techniques we study how a spin-gap or more generally plateaux in magnetization curves arise in different situations. While for coupled XXZ chains, one has to deal with a recently discovered chiral perturbation, the couplin...