111 citations · 240 across the 10 of their papers we have counts for
10 papers
Enhanced photogalvanic effect in the two-dimensional MgCl/ZnBr vertical heterojunction by inhomogenous tensile stress
Liyu Qian, Juan Zhao, Yiqun Xie
The photogalvanic effect (PGE) occurring in noncentrosymmetric materials enables the generation of a dc photocurrent at zero bias with a high polarization sensitivity, which makes…
Largely enhanced photogalvanic effects in the phosphorene photodetector by strain-increased device asymmetry
Juan Zhao, Yibin Hu, Yiqun Xie +2
Photogalvanic effect (PGE) occurring in noncentrosymmetric materials enables the generation of the open-circuit voltage that is much larger than the bandgap, making it rather attra…
Two-Dimensional Photogalvanic Spin-Battery
Yiqun Xie, Mingyan Chen, Zewen Wu +4
Pure spin-current is of central importance in spintronics. Here we propose a two-dimensional (2D) spin-battery system that delivers pure spin-current without an accompanying charge…
High intrinsic in InP monolayer at room temperature
Shenghui Zhang, Xiaobin Niu, Yiqun Xie +4
Two-dimensional thermoelectric materials with a figure of merit , which is greater than 2.0 at room temperature, would be highly desirable in energy conversion since the effici…
Low conductance of the nickel atomic junctions in hydrogen atmosphere
Shuaishuai Li, Yi-Qun Xie, Yibin Hu
The low conductance of nickel atomic junctions in the hydrogen environment is studied using the nonequilibrium Green's function theory combined with first-principles calculations.…
Spin-polarized quantum transport properties through flexible phosphorene
Mingyan Chen, Zhizhou Yu, Yiqun Xie +1
We report a first-principles study on the tunnel magnetoresistance (TMR) and spin-injection efficiency (SIE) through phosphorene with nickel electrodes under the mechanical tension…
Nonequilibrium spin injection in monolayer black phosphorus
Mingyan Chen, Zhizhou Yu, Yin Wang +3
Monolayer black phosphorus (MBP) is an interesting emerging electronic material with a direct band gap and relatively high carrier mobility. In this work we report a theoretical in…
Conductance of Ferro- and Antiferro-magnetic single-atom contacts: A first-principles study
Zhi-Yun Tan, Xiao-long Zheng, Xiang Ye +2
We present a first-principles study on the spin denpendent conductance of five single-atom magnetic junctions consisting of a magnetic tip and an adatom adsorbed on a magnetic surf…
Conductance of single-atom magnetic junctions: A first-principles study
Yi-qun Xie, Qiang Li, Lei Huang +2
We present a first-principles investigation to show that the contact conductance of a half conductance quantum () found previously does not generally hold for single-atom ma…
Pressure-induced structural transition of ZnO nanocrystals studied with molecular dynamics
Xinwei Dong, Feng Liu, Yiqun Xie +3
We have studied the pressure-induced structural transition of ZnO nanocrystals using constant pressure molecular dynamics simulations for finite system. We have observed the transi…