344 citations · 6.3k across the 155 of their papers we have counts for
5 papers · 1 filter
Correlated two-electron transport: a principle for a novel charge pump
Qing-feng Sun, Hong Guo, Jian Wang
By considering a correlated two-electron transport process (TET) and using a diagrammatic analysis within the Keldysh nonequilibrium Green's function formalism, we discuss a novel…
A spin-cell for spin current
Qing-feng Sun, Hong Guo, Jian Wang
We propose and investigate a spin-cell device which provides the necessary spin-motive force to drive a spin current for future spintronic circuits. Our spin-cell have four basic c…
Parametric quantum spin pump
Wei Zheng, Junling Wu, Baigeng Wang +3
We investigate a non-adiabatic parametric quantum pump consists of a nonmagnetic scattering region connected by two ferromagnetic leads. The presence of ferromagnetic leads allows…
Andreev-Fano Effect in a Hybrid Normal-Metal / Superconductor Interferometer
Yu Zhu, Qing-feng Sun, Tsung-han Lin
We report on a new type of Fano effect, named as Andreev-Fano effect, in a hybrid normal-metal / superconductor (N/S) interferometer embedded with a quantum dot. Compared with the…
Microwave-induced pi-junction transition in a superconductor / quantum-dot / superconductor structure
Yu Zhu, Wei Li, Tsung-han Lin +1
Using the nonequilibrium Green function, we show that microwave irradiation can reverse the supercurrent flowing through a superconductor / quantum-dot / superconductor structure.…