78 citations · 215 across the 7 of their papers we have counts for
7 papers
Theoretical limit of the minimal magnetization switching field and the optimal field pulse for Stoner particles
Z. Z. Sun, X. R. Wang
The theoretical limit of the minimal magnetization switching field and the optimal field pulse design for uniaxial Stoner particles are investigated. Two results are obtained. One…
Proximity and anomalous field-effect characteristics in double-wall carbon nanotubes
Jie Lu, Sun Yin, Z. Z. Sun +2
Proximity effect on field-effect characteristic (FEC) in double-wall carbon nanotubes (DWCNTs) is investigated. In a semiconductor-metal (S-M) DWCNT, the penetration of electron wa…
A possible minimum toy model with negative differential capacitance for self-sustained current oscillation
Gang Xiong, Z. Z. Sun, X. R. Wang
We generalize a simple model for superlattices to include the effect of differential capacitance. It is shown that the model always has a stable steady-state solution (SSS) if all…
Fast magnetization switching of Stoner particles: A nonlinear dynamics picture
Z. Z. Sun, X. R. Wang
The magnetization reversal of Stoner particles is investigated from the point of view of nonlinear dynamics within the Landau-Lifshitz-Gilbert formulation. The following results ar…
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…
Limit cycle induced frequency locking in self-sustained current oscillations of superlattices
Z. Z. Sun, H. T. He, J. N. Wang +2
The ac response of self-sustained current oscillations (SSCOs) in GaAs/AlAs superlattices (SLs) is derived based on the deformation of a limit cycle under an external ac driving fo…