291 citations · 437 across the 13 of their papers we have counts for
13 papers
Robust data analysis and imaging with computational ghost imaging
Jiangtao Liu, Xun-Ming Cai, Jin-Bao Huang +5
Nowadays the world has entered into the digital age, in which the data analysis and visualization have become more and more important. In analogy to imaging the real object, we dem…
Robust wavefront dislocations of Friedel oscillations in gapped graphene
Shu-Hui Zhang, Jin Yang, Ding-Fu Shao +2
Friedel oscillation is a well-known wave phenomenon, which represents the oscillatory response of electron waves to imperfection. By utilizing the pseudospin-momentum locking in ga…
Tunable anisotropic behaviors in phosphorene under periodic potentials in arbitrary directions
Xiaojing Li, Wen Yang, Kun Luo +1
We investigate theoretically the anisotropic electronic and optical behaviors of a monolayer black phosphorus (phosphorene) modulated by periodic potential superlattices in arbitra…
Electric field tuning spin splitting in topological insulator quantum dots doped with a single magnetic ion
Xiaojing Li, Zhenhua Wu, Wenkai Lou
We investigate theoretically the electron spin states in disk-shaped HgTe topological insulator quantum dots (TIQDs) containing a single magnetic ion. We show that the en…
Tuning electrical and optical anisotropy of a monolayer black phosphorus magnetic superlattice
X. J. Li, J. H. Yu, Z. H. Wu +1
We investigate theoretically the effects of modulated periodic perpendicular magnetic fields on the electronic states and optical absorption spectrum in a monolayer black phosphoru…
Aharonov-Bohm effect in monolayer black phosphorus (phosphorene) nanorings
Rui Zhang, Zhenhua Wu, Xiaojing Li +1
This work presents theoretical demonstration of Aharonov-Bohm (AB) effect in monolayer phosphorene nanorings (PNR). Atomistic quantum transport simulations of PNR are employed to i…
Optimized spin-injection efficiency and spin MOSFET operation based on low-barrier ferromagnet/insulator/n-Si tunnel contact
Yang Yang, Zhenhua Wu, Wen Yang +3
We theoretically investigate the spin injection in different FM/I/n-Si tunnel contacts by using the lattice NEGF method. We find that the tunnel contacts with low barrier materials…
Spin polarized Charge Trapping and Transfer at a HgTe Topological Insulator Quantum Dot
L. Z. Lin, Zhenhua Wu
This work presents theoretical demonstration of a carrier trap unit formed by dual topological insulator constrictions (TIC) on the HgTe/CdTe quantum well (QW) with inverted band s…
Electron tunneling through a single magnetic barrier in HgTe topological insulator
L. Lin, X. Wu, W. Low +2
Electron tunneling through a single magnetic barrier in a HgTe topological insulator has been theoretically investigated. We find that the perpendicular magnetic field would not le…
Valley-dependent Brewster angles and Goos-Hanchen effect in strained graphene
Zhenhua Wu, F. Zhai, F. M. Peeters +2
We demonstrate theoretically how local strains in graphene can be tailored to generate a valley polarized current. By suitable engineering of local strain profiles, we find that el…
Electronic fibre in graphene
Zhenhua Wu
We investigate theoretically the transmission properties through a p-n-p junction on graphene. Here we show that the electronic transport property presents deep analogies with ligh…
Charge pumping in monolayer graphene driven by a series of time-periodic potentials
Zhenhua Wu, J. Li, K. S. Chand
We applied the Floquet scattering-matrix formalism to studying the electronic transport properties in a mesoscopic Dirac system. Using the method, we investigate theoretically quan…
Resonant Tunneling through S- and U-shaped Graphene Nanoribbons
Z. Z. Zhang, Z. H. Wu, Kai Chang +1
We theoretically investigate resonant tunneling through S- and U-shaped nanostructured graphene nanoribbons. A rich structure of resonant tunneling peaks are found eminating from d…