221 citations · 484 across the 8 of their papers we have counts for
8 papers
Optimizing Topological Switching in Confined 2D-Xene Nanoribbons via Finite-Size Effects
Muhammad Nadeem, Chao Zhang, Dimitrie Culcer +3
In a blueprint for topological electronics, edge state transport in a topological insulator material can be controlled by employing a gate-induced topological quantum phase transit…
Observation of Negative THz Photoconductivity in Large Area Type-II Dirac Semimetal PtTe2
Peng Suo, Huiyun Zhang, Shengnan Yan +10
As a newly emergent type-II Dirac semimetal, Platinum Telluride (PtTe2) stands out from other 2D noble-transition-metal dichalcogenides for the unique structure and novel physical…
A High-Performance Mid-infrared Optical Switch Enabled by Bulk Dirac Fermions in Cd3As2
Chunhui Zhu, Fengqiu Wang, Yafei Meng +11
Pulsed lasers operating in the 2-5 μm band are important for a wide range of applications in sensing, spectroscopy, imaging and communications. Despite recent advances with mid-inf…
Klein tunneling and cone transport in AA-stacked bilayer graphene
Matthew Sanderson, Yee Sin Ang, Chao Zhang
We investigate the quantum tunneling of electrons in an AA-stacked bilayer graphene (BLG) - junction and -- junction. We show that Klein tunneling of an electron can…
Universal geometric classification of armchair graphene nanoribbons by their properties in a staggered sublattice potential
T. E. O'Brien, Chao Zhang, Anthony R. Wright
We demonstrate the topological properties of the band-gap of armchair graphene nanoribbons in a spatially varying staggered sublattice potential. Several general scaling laws are p…
Orientation dependence of the optical spectra in graphene at high frequencies
Chao Zhang, Lei Chen, Zhongshui Ma
On the basis of the Kubo formula we evaluated the optical conductivity of a graphene sheet. The full behavior of frequency as well as temperature dependence of the optical conducti…