34 citations · 146 across the 11 of their papers we have counts for
11 papers
Resonant THz detection by periodic multi-gate plasmonic FETs
Yuhui Zhang, Michael S. Shur
We show that a periodic multi-grated-gate structure can be applied to THz plasmonic FETs (TeraFETs) to improve the THz detection sensitivity. The introduction of spatial non-unifor…
THz detection and amplification using plasmonic Field Effect Transistors driven by DC drain currents
Yuhui Zhang, Michael Shur
We report on the numerical and theoretical results of sub-THz and THz detection by a current-driven InGaAs/GaAs plasmonic Field-Effect Transistor (TeraFET). New equations are devel…
TeraFET terahertz detectors with spatially non-uniform gate capacitances
Yuhui Zhang, Michael S. Shur
A non-uniform capacitance profile in the channel of a THz field-effect transistor (TeraFET) could significantly improve the THz detection performance. The analytical solutions and…
Collision dominated, ballistic, and viscous regimes of terahertz plasmonic detection by graphene
Yuhui Zhang, Michael S. Shur
The terahertz detection performance and operating regimes of graphene plasmonic field-effect transistors (FETs) were investigated by a hydrodynamic model. Continuous wave detection…
Ultrashort Pulse Detection and Response Time Analysis Using Plasma-wave Terahertz Field Effect Transistors
Yuhui Zhang, Michael S. Shur
We report on the response characteristics of plasmonic terahertz field-effect transistors (TeraFETs) fed with femtosecond and picosecond pulses. Varying the pulse width (tpw) from…
p-Diamond, Si, GaN and InGaAs TeraFETs
Yuhui Zhang, Michael S. Shur
p-diamond field effect transistors (FETs) featuring large effective mass, long momentum relaxation time and high carrier mobility are a superb candidate for plasmonic terahertz (TH…
Entanglement Area Law in Disordered Free Fermion Anderson Model in One, Two, and Three Dimensions
Mohammad Pouranvari, Yuhui Zhang, Kun Yang
We calculate numerically the entanglement entropy of free fermion ground states in one-, two- and three-dimensional Anderson models, and find that it obeys the area law as long as…
Existence of strong-pairing quantum Hall phase in bilayer cold atom systems with dipolar interactions
Yuhui Zhang, E. H. Rezayi, Kun Yang
We study bilayer fermionic cold atom systems with dipolar interactions, as well as a two-component tunable pseudopotential (TCTP) model which keeps only the zeroth and first Haldan…
Edge reconstruction of fractional quantum Hall liquids with spin degrees of freedom
Yuhui Zhang, Zi-Xiang Hu, Kun Yang
We study the interplay of confining potential, electron-electron interaction, and Zeeman splitting at the edges of fractional quantum Hall liquids, using numerical diagonalization…
Edge spin excitations and reconstructions of integer quantum Hall liquids
Yuhui Zhang, Kun Yang
We study the effect of electron-electron interaction on the charge and spin structures at the edge of integer quantum Hall liquids, under three different kinds of confining potenti…
Coulomb impurity under magnetic field in graphene: a semiclassical approach
Yuhui Zhang, Yafis Barlas, Kun Yang
We address the problem of a Coulomb impurity in graphene in the presence of a perpendicular uniform magnetic field. We show that the problem can be solved below the supercritical i…