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Fabrication of uniformly doped graphene quantum Hall arrays with multiple quantized resistance outputs
Swapnil M. Mhatre, Ngoc Thanh Mai Tran, Heather M. Hill +7
In this work, limiting factors for developing metrologically useful arrays from epitaxial graphene on SiC are lifted with a combination of centimeter-scale, high-quality material g…
Spectroscopic assessment of short-term nitric acid doping of epitaxial graphene
Ngoc Thanh Mai Tran, Swapnil M. Mhatre, Cristiane N. Santos +10
This work reports information on the transience of hole doping in epitaxial graphene devices when nitric acid is used as an adsorbent. Under vacuum conditions, desorption processes…
Timescales for Nitric Acid Desorption in Epitaxial Graphene Devices
Swapnil M. Mhatre, Ngoc Thanh Mai Tran, Heather M. Hill +6
This work reports the dynamics of transient hole doping in epitaxial graphene devices by using nitric acid as an adsorbent. The timescales associated with corresponding desorption…
Large-scale five- and seven-junction epitaxial graphene devices
Dinesh Patel, Martina Marzano, Chieh-I Liu +8
The utilization of multiple current terminals on millimeter-scale graphene p-n junction devices has enabled the measurement of many atypical, fractional multiples of the quantized…
Algorithms for determining resistances in quantum Hall annuli with p-n junctions
Chieh-I Liu, Dominick S. Scaletta, Dinesh K. Patel +4
Just a few of the promising applications of graphene Corbino pnJ devices include two-dimensional Dirac fermion microscopes, custom programmable quantized resistors, and mesoscopic…
Quantum Hall Junction Dartboards Using Graphene Annuli
Chieh-I Liu, Dinesh K. Patel, Martina Marzano +3
The use of multiple current terminals on millimeter-scale graphene junction devices fabricated with Corbino geometries, or quantum Hall resistance dartboards, have enabled th…
Nonconventional Quantized Hall Resistances Obtained with Equilibration in Epitaxial Graphene Junctions
Albert F. Rigosi, Dinesh Patel, Martina Marzano +9
We have demonstrated the millimeter-scale fabrication of monolayer epitaxial graphene junction devices using simple ultraviolet photolithography, thereby significantly reduci…
Algorithm for constructing customized quantized resistances in graphene junctions
Albert F. Rigosi, Martina Marzano, Antonio Levy +6
An algorithm 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 o…
Review of Theoretical and Computational Methods for 2D Materials Exhibiting Charge Density Waves
Sugata Chowdhury, Heather M. Hill, Albert F. Rigosi +3
Two-dimensional (2D) materials that exhibit charge density waves (CDWs) have generated many research endeavors in the hopes of employing their exotic properties for various quantum…