Tunable Superlattice in Graphene To Control the Number of Dirac Points
Mesoscale and Nanoscale Physics
2013-09-19 v1
Abstract
Superlattice in graphene generates extra Dirac points in the band structure and their number depends on the superlattice potential strength. Here, we have created a lateral superlattice in a graphene device with a tunable barrier height using a combination of two gates. In this Letter, we demonstrate the use of lateral superlattice to modify the band structure of graphene leading to the emergence of new Dirac cones. This controlled modification of the band structure persists up to 100 K.
Keywords
Cite
@article{arxiv.1309.4653,
title = {Tunable Superlattice in Graphene To Control the Number of Dirac Points},
author = {Sudipta Dubey and Vibhor Singh and Ajay K. Bhat and Pritesh Parikh and Sameer Grover and Rajdeep Sensarma and Vikram Tripathi and K. Sengupta and Mandar M. Deshmukh},
journal= {arXiv preprint arXiv:1309.4653},
year = {2013}
}
Comments
Supplementary Information from the journal web page