1 citations · 1 across the 3 of their papers we have counts for
4 papers
Negative differential resistance due to the resonance coupling of a quantum-dot dimer
S. D. Wang, Z. Z. Sun, N. Cue +1
Electron tunneling through a coupled quantum-dot dimer under a dc-bias is investigated. We find that a peak in the - curve appears at low temperature when two discrete electr…
The effect of inter-Landau-band mixing on extended states in quantum Hall system
Gang Xiong, Shi-Dong Wang, Qian Niu +4
The effect of inter-Landau-band mixing on electron localization in an integer quantum Hall system is studied. We find that mixing of localized states with {\it opposite chirality}…
Limit cycle theory of temporal current self-oscillations in sequential tunneling of superlattices
X. R. Wang, Z. Z. Sun, S. Q. Duan +1
A unified theory of the temporal current self-oscillations is presented. We establish these oscillations as the manifestations of limit cycles, around unstable steady-state solutio…
The Edge-State Theory of Integer-Quantum-Hall-Effect to Insulator Transition
X. R. Wang, X. C. Xie, Q. Niu +1
Direct transitions, driven by disorder, from several integral quantum Hall states to an insulator have been observed in experiment. This finding is enigmatic in light of a theoreti…