Easy-to-configure zero-dimensional valley-chiral modes in a graphene point junction

The valley degree of freedom in 2D materials can be manipulated for low-dissipation quantum electronics called valleytronics. At the boundary between two regions of bilayer graphene with different atomic or electrostatic configurations, a valley-polarized current has been realized. However, the demanding fabrication and operation requirements limit device reproducibility and scalability toward more advanced valleytronics circuits. We demonstrate a new device architecture of a point junction where a valley-chiral 0D PN junction is easily configured, switchable, and capable of carrying valley current with an estimated polarization of ~80%. This work provides a new building block in manipulating valley quantum numbers and scalable valleytronics., , , # Easy-to-configure zero-dimensional valley-chiral modes in a graphene point junction

[https://doi.org/10.5061/dryad.z08kprrn8](https://doi.org/10.5061/dryad.z08kprrn8)

The data is structured in the following way: the data is divided into folders corresponding to the figures where the data was visualized. Some folders have subfolders that correspond to a particular panel of the figure. The names of the folders and subfolders unambiguously tell which panel the data corresponds to. For each subfolder, there are details below on how to access the data and what experimental parameters the values in the data correspond to. The electrical transport data can be accessed via MATLAB (recommended versions: MATLAB Release 2018a and newer). The data about the gates' topography can be accessed via software (e. g. Gwyddion) that can analyze atomic force microscope topography results.

## Description of the data and file structure

## Subfolder \"Fig1-BC\"

The software called Gwyddion can be used to ...