137 citations · 629 across the 18 of their papers we have counts for
19 papers
A new alloy for Al-chalcogen system: AlSe surface alloy on Al (111)
En-Ze Shao, Kai Liu, Hao Xie +6
Metal chalcogenide is a promising material for studying novel underlying physical phenomena and nanoelectronics applications. Here, we systematically investigate the crystal struct…
Exploring Native Atomic Defects in NiTe2
Wen-Xiao Wang, Kaihui Li, Xiaoshan Dong +9
Nickel ditelluride (NiTe2), a new discovered type-II Dirac semimetal whose Dirac node lies close to its Fermi level, is expected to exhibit exotic phenomena including Lifshitz tran…
Phase-dependent epitaxy for antimonene growth on silver substrate
Kai Liu, Keke Bai, Jing Wang +2
Antimonene is a novel two-dimensional topological semiconductor material with strain driven tunable electronic structure for future electronic and spintronic devices, but the growt…
Breaking whispering-gallery modes of massless Dirac fermions in graphene quantum dots by Coulomb interaction
Zhong-Qiu Fu, Ke-Ke Bai, Ya-Ning Ren +2
Coulomb interaction is of central importance in localized energy levels (bound states) or electronic flat bands and could result in many exotic quantum phases, such as magnetic, su…
Relativistic Artificial Molecules Realized by Two Coupled Graphene Quantum Dots
Zhong-Qiu Fu, Yue-Ting Pan, Jiao-Jiao Zhou +6
Coupled quantum dots (QDs), usually referred to as artificial molecules, are important not only in exploring fundamental physics of coupled quantum objects, but also in realizing a…
Segregation growth and self-organization of ordered S atomic superlattices confined at interface between graphene and substrates
Dong-Lin Ma, Zhong-Qiu Fu, Ke-Ke Bai +7
Ordered atomic-scale superlattices on surface hold great interest both for basic science and for potential applications in advanced technology. However, controlled fabrication of s…
The tunnelling spectra of quasi-free-standing graphene monolayer
Si-Yu Li, Ke-Ke Bai, Wei-Jie Zuo +7
With considering the great success of scanning tunnelling microscopy (STM) studies of graphene in the past few years, it is quite surprising to notice that there is still a fundame…
Generating nanoscale and atomically-sharp p-n junctions in graphene via monolayer-vacancy-island engineering of Cu surface
Ke-Ke Bai, Jiao-Jiao Zhou, Yi-Cong Wei +5
Creation of high quality p-n junctions in graphene monolayer is vital in studying many exotic phenomena of massless Dirac fermions. However, even with the fast progress of graphene…
Realization of room-temperature ferromagnetic semiconducting state in graphene monolayer
Yu Zhang, Xue-Lei Sui, Dong-Lin Ma +3
Room-temperature ferromagnetic semiconductor is vital in nonvolatile digital circuits and it can provide an idea system where we can make use of both charge and spin of electrons.…
Landau quantization of Dirac fermions in graphene and its multilayer
Long-jing Yin, Ke-ke Bai, Wen-xiao Wang +3
When electrons are confined in a two dimensional (2D) system, typical quantum mechanical phenomena such as Landau quantization can be detected. Graphene systems, including the sing…
Massless Dirac Fermions Trapping in a Quasi-one-dimensional npn Junction of a Continuous Graphene Monolayer
Ke-Ke Bai, Jia-Bin Qiao, Hua Jiang +2
Massless Dirac fermions in graphene provide unprecedented opportunities to realize the Klein paradox, which is one of the most exotic and striking properties of relativistic partic…
Detecting giant electron-hole asymmetry in graphene monolayer generated by strain and charged-defect scattering via Landau level spectroscopy
Ke-Ke Bai, Yi-Cong Wei, Jia-Bin Qiao +5
The electron-hole symmetry in graphene monolayer, which is analogous to the inherent symmetric structure between electrons and positrons of the Universe, plays a crucial role in th…
Observation of Valley-polarized Landau Levels in Strained Graphene
Si-Yu Li, Ke-Ke Bai, Long-Jing Yin +3
In strained graphene, lattice deformation can create pseudo-magnetic fields and result in zero-field Landau level-like quantization. In the presence of an external magnetic field,…
Magnetic-field-assisted electron confinement and valley splitting in strained graphene
Jun-Fang Liu, Ke-Ke Bai, Jia-Bin Qiao +5
Spatially varying strained graphene can acquire interesting electronic properties because of the strain-induced valley-dependent gauge (pseudomagnetic) fields1,2. Here we report th…
Direct Probing Stacking Order and Electronic Spectrum of Rhombohedral Trilayer Graphene with Scanning Tunneling Microscopy
Rui Xu, Long-Jing Yin, Jia-Bin Qiao +3
Recently, the rhombohedral trilayer graphene (r-TLG) has attracted much attention because of its low-energy flat bands, which are predicted to result in many strongly correlated ph…
Creating One-dimensional Nanoscale Periodic Ripples in a Continuous Mosaic Graphene Monolayer
Ke-Ke Bai, Yu Zhou, Hong Zheng +5
In previous studies, it proved difficult to realize periodic graphene ripples with wavelengths of few nanometers. Here we show that one-dimensional periodic graphene ripples with w…
Electronic Structures of Graphene Layers on Metal Foil: Effect of Point Defects
Hui Yan, Cheng-Cheng Liu, Ke-Ke Bai +9
Here we report a facile method to generate a high density of point defects in graphene on metal foil and show how the point defects affect the electronic structures of graphene lay…
Strain Induced One-Dimensional Landau-Level Quantization in Corrugated Graphene
Lan Meng, Wen-Yu He, Hong Zheng +10
Theoretical research has predicted that ripples of graphene generates effective gauge field on its low energy electronic structure and could lead to zero-energy flat bands, which a…
Experimental realization of single electron tunneling diode based on vertical graphene two-barrier junction
Rui Xu, Ke-Ke Bai, Jia-Cai Nie +1
Usually, graphene is used in its horizontal directions to design novel concept devices. Here, we report a single electron tunneling diode based on quantum tunneling through a verti…