Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Li, Zhibing"'
Publikováno v:
Nanomaterials 2024, 14, 607
In recent studies, it has been discovered that phonons can carry angular momentum, leading to a series of investigations into systems with 3-fold rotation symmetry. However, for systems with 2-fold screw rotational symmetry, such as $\alpha$-MoO$_3$,
Externí odkaz:
http://arxiv.org/abs/2403.07729
Publikováno v:
Journal of Physical Chemistry C 128 (2024) 7359
Hyperbolic phonon polariton is important in precisely controlling photons at the nanoscale. It was common practice to calculate the dielectric function of the phonon polariton system with the Drude-Lorenz model. We considered the impact of LO-TO spli
Externí odkaz:
http://arxiv.org/abs/2402.11956
Publikováno v:
Surface Review and Letters, 22 (2015) 1550069
We have investigated field evaporation of grounded arsenic (As) doped silicon (Si) clusters consist of 52 atoms with density functional theory to mimic Si nano structures of hundreds of nanometers long standing on a substrate. Six cluster structures
Externí odkaz:
http://arxiv.org/abs/1410.3053
We obtain the wave function of field emission from graphene in magnetic field. The emission image reveals structure of the Landau levels and depends on the phase difference between two sub-lattices. The emission pattern is sensitive to the edge poten
Externí odkaz:
http://arxiv.org/abs/1302.5916
Autor:
Wang, Weiliang, Li, Zhibing
It is common practice to extract field enhancement factor from the slope of FN plot. Many experimentalists working on field electron emission had reported multi-(linear segment) FN plots, which can be divided into several (usually two) linear segment
Externí odkaz:
http://arxiv.org/abs/1211.4197
Autor:
Wang, Weiliang, Li, Zhibing
An extraordinary low vacuum barrier height of 2.30 eV has been found on the zigzag-edge of graphene terminated with the secondary amine via the ab initio calculation. This edge structure has a flat band of edge states attached to the gamma point wher
Externí odkaz:
http://arxiv.org/abs/1209.0517
We investigated the vacuum potential barriers of various graphene edges terminated with hydrogen, oxygen, hydroxyl group and ether group respectively. It is found that the exchange-correlation potential correction is significant to the edge structure
Externí odkaz:
http://arxiv.org/abs/1112.2284
Autor:
Wang, Weiliang, Li, Zhibing
Publikováno v:
J. Appl. Phys. 109 (2011) 114308
We calculated row resolved density of states, charge distribution and work function of graphene's zigzag and armchair edge (either clean or terminated alternatively with H, O or OH group). The zigzag edge saturated via OH group has the lowest work fu
Externí odkaz:
http://arxiv.org/abs/1104.1746
Publikováno v:
J. Appl. Phys. 109 (2011) 044304
The field electron emission current from graphene is calculated analytically on a semiclassical model. The unique electronic energy band structure of graphene and the field penetration in the edge from which the electrons emit have been taken into ac
Externí odkaz:
http://arxiv.org/abs/1009.1075
Publikováno v:
Proc. R. Soc. A, 467 (2011) 1029
This paper presents an elementary, approximate analytical treatment of cold field electron emission (CFE) from a classical nanowall. A simple model is used to bring out some of the basic physics of a class of field emitter where quantum confinement e
Externí odkaz:
http://arxiv.org/abs/1002.3947