activity
20162022
most citedRapid characterization of wafer-scale 2D material: Epitaxial graphene and graphene nanoribbons on SiC

3 citations · 5 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.mes-hall2022

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…

cond-mat.mes-hall2022

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…

cond-mat.mes-hall2022

Fabrication of quantum Hall p-n junction checkerboards

Dinesh K. Patel, Martina Marzano, Chieh-I Liu +4

Measurements of fractional multiples of the ν=2 plateau quantized Hall resistance (R_H {\approx} 12906 Ω) were enabled by the utilization of multiple current terminals on millimetr…

cond-mat.mes-hall2022

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…

physics.app-ph2021

Crystalline Formations of NbN/4H-SiC Heterostructure Interfaces

Michael B. Katz, Chieh-I Liu, Albert F. Rigosi +4

Given the importance of incorporating various superconducting materials to device fabrication or substrate development, studying the interface for possible interactions is warrante…

physics.app-ph2018★ 2 cited

Confocal laser scanning microscopy: A tool for rapid optical characterization of 2D materials

Vishal Panchal, Yanfei Yang, Guangjun Cheng +9

Confocal laser scanning microscopy (CLSM) is a non-destructive, highly-efficient optical characterization method for large-area analysis of graphene on different substrates, which…

physics.app-ph2017★ 3 cited

Rapid characterization of wafer-scale 2D material: Epitaxial graphene and graphene nanoribbons on SiC

Vishal Panchal, Yanfei Yang, Guangjun Cheng +8

We demonstrate that the confocal laser scanning microscopy (CLSM) provides a non-destructive, highly-efficient characterization method for large-area epitaxial graphene and graphen…

cond-mat.mtrl-sci2016

Epitaxial graphene homogeneity and quantum Hall effect in millimeter-scale devices

Yanfei Yang, Guangjun Cheng, Patrick Mende +8

Quantized magnetotransport is observed in 5.6 x 5.6 mm^2 epitaxial graphene devices, grown using highly constrained sublimation on the Si-face of SiC(0001) at high temperature (190…