306 citations · 390 across the 7 of their papers we have counts for
7 papers
Graphene Transistor Based on Tunable Dirac-Fermion-Optics
Ke Wang, Mirza M. Elahi, K. M. Masum Habib +5
The linear energy-momentum dispersion, coupled with pseudo-spinors, makes graphene an ideal solid-state material platform to realize an electronic device based on Dirac-Fermionic r…
Graphene Klein tunnel transistors for high speed analog RF applications
Yaohua Tan, Mirza M. Elahi, Han-Yu Tsao +3
We propose Graphene Klein tunnel transistors (GKTFET) as a way to enforce current saturation while maintaining large mobility for high speed radio frequency (RF) applications. The…
Interlayer Transport through a Graphene / Rotated-Boron-Nitride / Graphene Heterostructure
Supeng Ge, K. M. Masum Habib, Amrit De +4
Interlayer electron transport through a graphene / hexagonal boron-nitride (h-BN) / graphene heterostructure is strongly affected by the misorientation angle of the h-BN with r…
Electron optics with ballistic graphene junctions
Shaowen Chen, Zheng Han, Mirza M. Elahi +9
Electrons transmitted across a ballistic semiconductor junction undergo refraction, analogous to light rays across an optical boundary. A pn junction theoretically provides the equ…
Modified Dirac Hamiltonian for Efficient Quantum Mechanical Simulations of Micron Sized Devices
K. M. Masum Habib, Redwan N. Sajjad, Avik W. Ghosh
Representing massless Dirac fermions on a spatial lattice poses a potential challenge known as the Fermion Doubling problem. Addition of a quadratic term to the Dirac Hamiltonian c…
Quantum transport at the Dirac point: Mapping out the minimum conductivity from pristine to disordered graphene
Redwan N. Sajjad, Frank Tseng, K. M. Masum Habib +1
The phase space for graphene's minimum conductivity is mapped out using Landauer theory modified for scattering using Fermi's Golden Rule, as well as the Non-Equil…
Chiral tunneling of topological states: towards the efficient generation of spin current using spin-momentum locking
K. M. Masum Habib, Redwan N. Sajjad, Avik W. Ghosh
We show that the interplay between chiral tunneling and spin-momentum locking of helical surface states leads to spin amplification and filtering in a 3D Topological Insulator (TI)…