Q. Cheng

activity

20162023

most citedJosephson diode based on conventional superconductors and a chiral quantum dot

36 citations · 108 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.mes-hall2023★ 36 cited

Josephson diode based on conventional superconductors and a chiral quantum dot

Qiang Cheng, Qing-Feng Sun

We propose theoretically a Josephson diode consisting of the conventional superconductors with the plain s-wave pairing and a chiral quantum dot. When an external magnetic field is…

cond-mat.supr-con2021★ 16 cited

Spin-triplet superconductor $-$ quantum anomalous Hall insulator $-$ spin-triplet superconductor Josephson junctions: $0$ - $π$ transition, $ϕ_{0}$ phase and switch effects

Qiang Cheng, Qing Yan, Qing-Feng Sun

We study the Josephson effect in spin-triplet superconductor $-$ quantum anomalous Hall insulator $-$ spin-triplet superconductor junctions using the nonequilibrium Green function meth…

cond-mat.supr-con2020★ 20 cited

Double Andreev reflections and double normal reflections in nodal-line semimetal-superconductor junctions

Qiang Cheng, Zhe Hou, Qing-Feng Sun

We study systematically the scattering processes and the conductance spectra in nodal-line semimetalsuperconductor junctions using the extended Blonder-Tinkham-Klapwijk theory. The…

cond-mat.supr-con2020★ 21 cited

Switch effect and $0$ - $π$ transition in Ising superconductor Josephson junctions

Qiang Cheng, Qing-Feng Sun

We theoretically study the Josephson current in Ising superconductor-half-metal-Ising superconductor junctions. By solving the Bogoliubov-de Gennes equations, the Josephson current…

cond-mat.supr-con2017★ 6 cited

Symmetry analysis of transport properties in helical superconductor junctions

Qiang Cheng, Yinhan Zhang, Kunhua Zhang +2

We study discrete symmetries satisfied by helical $p$ -wave superconductors with d-vectors $k_{x} x^\pm k_{y} y^$ or $k_{y} x^\pm k_{x} y^$ and transformations broug…

cond-mat.supr-con2016★ 5 cited

Tunable ground states in helical $p$ -wave Josephson junctions

Qiang Cheng, Kunhua Zhang, Dongyang Yu +3

We study new types of Josephson junctions composed of helical $p$ -wave superconductors with $k_{x} x^\pm k_{y} y^$ and $k_{y} x^\pm k_{x} y^$ -pairing symmetries usi…

cond-mat.supr-con2016★ 4 cited

Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical $p$ -wave states

Qiang Cheng, Biao Jin

We study the Josephson effect in spin-singlet superconductor/helical $p$ -wave superconductor junctions with a ferromagnetic barrier using the quasiclassical Green function method.…

Josephson diode based on conventional superconductors and a chiral quantum dot

Spin-triplet superconductor−quantum anomalous Hall insulator−spin-triplet superconductor Josephson junctions: 0-π transition, ϕ0​ phase and switch effects

Double Andreev reflections and double normal reflections in nodal-line semimetal-superconductor junctions

Switch effect and 0-π transition in Ising superconductor Josephson junctions

Symmetry analysis of transport properties in helical superconductor junctions

Tunable ground states in helical p-wave Josephson junctions

Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical p-wave states

Spin-triplet superconductor $-$ quantum anomalous Hall insulator $-$ spin-triplet superconductor Josephson junctions: $0$ - $π$ transition, $ϕ_{0}$ phase and switch effects

Switch effect and $0$ - $π$ transition in Ising superconductor Josephson junctions

Tunable ground states in helical $p$ -wave Josephson junctions

Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical $p$ -wave states