244 citations · 348 across the 6 of their papers we have counts for
5 papers · 1 filter
Quantum blockade and loop current induced by a single lattice defect in graphene nanoribbons
Jie-Yun Yan, Ping Zhang, Bo Sun +4
We investigate theoretically the electronic transport properties in narrow graphene ribbons with an adatom-induced defect. It is found that the lowest conductance step of a metalli…
Photon-assistant Fano resonance in coupled multiple quantum dots
Wanyuan Xie, Hui Pan, Weidong Chu +2
Based on calculations of the electronic structure of coupled multiple quantum dots, we study systemically the transport properties of the system driven by an ac electric field. We…
Optical properties of coupled metal-semiconductor and metal-molecule nanocrystal complexes: the role of multipole effects
Jie-Yun Yan, Wei Zhang, Suqing Duan +2
We investigate theoretically the effects of interaction between an optical dipole (semiconductor quantum dot or molecule) and metal nanoparticles. The calculated absorption spectra…
First-principles calculations of Cu(001) thin films: quantum size effect in surface energetics and surface chemical reactivities
Bo Sun, Ping Zhang, Suqing Duan +3
First-principles calculations of Cu(001) free-standing thin films have been performed to investigate the oscillatory quantum size effects exhibited in surface energy, work function…
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…