45 citations · 110 across the 9 of their papers we have counts for
6 papers · 1 filter
Analytical theory and possible detection of the quantum spin Hall effect
W. Y. Deng, Y. J. Ren, Z. X. Lin +3
We develop an analytical theory of the low-frequency quantum spin Hall (QSH) effect based upon the scattering matrix formalism. It is shown that the QSH effect can be int…
Robust AC Quantum Spin Hall Effect without Participation of Edge States
W. Y. Deng, H. Geng, Wei Luo +4
The quantum spin Hall (QSH) effect in the DC regime, which has been intensively researched, relies on the existence of symmetry-protected edge states. Here, we demonstrate that a Q…
Effect of the edge states on the conductance and thermopower in Zigzag Phosphorene Nanoribbons
R. Ma, H. Geng, W. Y. Deng +3
We numerically study the effect of the edge states on the conductance and thermopower in zigzag phosphorene nanoribbons (ZPNRs) based on the tight-binding model and the scattering-…
Spin Berry Phase in a Quantum-Spin-Hall-Insulator-Based Interferometer: Evidence for the Helical Spin Texture of the Edge States
Wei Chen, Wei-Yin Deng, Jing-Min Hou +3
Quantum spin Hall insulator is characterized by the helical edge states, with the spin polarization of electron being locked to its direction of motion. Although the edge-state con…
Unified Theoretical Approach to Electronic Transport from Diffusive to Ballistic Regimes
H. Geng, W. Y. Deng, Y. J. Ren +2
We show that by integrating out the electric field and incorporating proper boundary conditions, a semiclassical Boltzmann equation can describe electron transport properties, cont…
Non-adiabatic topological spin pumping
W. Y. Deng, W. Luo, H. Geng +3
Based on the Floquet scattering theory, we analytically investigate the topological spin pumping for an exactly solvable model. Floquet spin Chern numbers are introduced to charact…