Electronics without bridging components
arXiv:1907.12655 · doi:10.1038/s41598-019-56717-z
Abstract
We propose a new paradigm of electronic devices based only on two electrodes separated by a gap, i.e. without any functional element bridging them. We use a tight-binding model to show that, depending on the type of material of the electrodes and its structure, several electronic functionalities can be achieved: ohmic behaviour, rectification, negative differential resistance, spin-filtering and magnetoresistance. In particular, we show that it is possible to deliver a given functionality by changing the coupling between the surface and bulk states and between the surface states across the gap, which dramatically changes the current-voltage characteristics. These results prove that it is possible to have functional electronic and spintronic elements on the nanoscale without having physical components bridging the electrodes.
7 pages, 4 figures
References in corpus (5)
- Mechanically Controlled Quantum Interference in Graphene Break Junctions
- Impact of edge shape on the functionalities of graphene-based single-molecule electronics devices
- Universality in the transport response of molecular wires physisorbed onto graphene electrodes
- Non-equilibrium transport response from equilibrium transport theory
- Spin signatures in the electrical response of graphene nanogaps