Abstract

A mathematical approach is introduced for predicting quantized resistances in graphene p-n junction devices that utilize more than a single entry and exit point for electron flow. Depending on the configuration of an arbitrary number of terminals, electrical measurements yield nonconventional, fractional multiples of the typical quantized Hall resistance at the nu = 2 plateau (R-H approximate to 12906 Omega) and take the form: a/bR(H). This theoretical formulation is independent of material, and applications to other material systems that exhibit quantum Hall behaviors are to be expected. Furthermore, this formulation is supported with experimental data from graphene devices with multiple source and drain terminals.

Publication Details
Publication Type
Journal Article
Year of Publication
2020
Volume
582
DOI
10.1016/j.physb.2019.411971
Journal
Physica B-Condensed Matter
Contributors
Groups