The invention provides a bumper based on a lattice unit cell honeycomb structure and an automobile. The bumper based on the lattice unit cell honeycomb structure comprises a front board, the lattice unit cell honeycomb structure and a cross bar. Two end surfaces of the lattice unit cell ...
focused mainly on its effect on 2D electron and spin dynamics, thus rendering the behavior of larger particles such as positively-charged ions (cations) on the lattice understudied. In particular, while the honeycomb lattice of graphene is formed by the carbon atoms, the electrodynamics studied is...
Fig. 2. (a) The honeycomb lattice structure of graphene with two atoms, A and B, per unit cell. a1 and a2 are the lattice vectors and a = 1.42 Å is the in-plane nearest-neighbor distance. (b) Brillouin zone of graphene with representation of Dirac cones near the K and K’ poin...
Spin orientations (purple arrows) on sublattice A (green dots) and sublattice B (red dots) are opposite to each other. The choice of unit cell is highlighted by the shaded blue circle. propagating along the edge with imaginary momentum in the transverse direction. It is quite fascinating ...
In particular, thin-walled hierarchical lattice structures show great advantages for improving the plateau stress and the specific energy absorption during compression. Fig. 22 shows some typical multiscale design strategies: unit cell hierarchical design [176,177], node hierarchical design [178], high...
We rely on a recent method for determining edge spectra and we use it tocompute the Chern numbers for Hofstadter models on the honeycomb lattice havingrational magnetic flux per unit cell. Based on the bulk-edge correspondence,the Chern number $\\\sigma_H$ is given as the winding number of...
Designed lattice structures (3D, periodic) Foams exist as open-celled (only cell walls), or closed celled (faces closed each cell) [5]. 2D cell shapes are designed with a plane like quadrilaterals, triangles, or hexagons with the center of symmetry. 3D cells are designed in which fill ...
Previous to this work, only tetrahedral non-coplanar magnetic states were reported in honeycomb36 and triangular lattice Hubbard models37,38. The P12v phase has 12 distinct spins per unit cell with the members of two sets of six spins, namely {1,2,3,4,5,6} and {7,8,9,10,11,12},...
In this manuscript, we study the topological nature of 2D PCs with honeycomb lattice. A honeycomb PC with different atoms in the unit cell bears similarity to gapped bilayer graphene with AB/BA stacking, where inversion symmetry is also broken. Thus, such a simple PC structure is a perfect ...
The intermediate core layer can consist of various structures, such as traditional stiffening ribs and honeycomb lattice. Additionally, due to their low volume density and excellent lightweight, high-strength properties, sandwich structures are very suitable for use in vibration reduction structures [5]...