Experimental study of carrier density tuning in epitaxial graphene QHR devices

@article{Fletcher2016ExperimentalSO,
  title={Experimental study of carrier density tuning in epitaxial graphene QHR devices},
  author={Nick E. Fletcher and Pierre Gournay and Benjamin Rolland and Martin Gotz and Sergei Novikov and Natalia Lebedeva and Alexandre Satrapinski},
  journal={2016 Conference on Precision Electromagnetic Measurements (CPEM 2016)},
  year={2016},
  pages={1-2}
}
Adjustment of the charge carrier density in quantized Hall resistance (QHR) devices based on epitaxial SiC graphene films can be performed using photochemical and chemical gating. Our experiments show that the carrier concentration in fabricated graphene devices can be reversibly varied by either treatment with UV light or using molecules from aqua ammonia… CONTINUE READING